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Power Magnetics | Introduction

Standex Electronics’ custom magnetics and power conversion assemblies are designed and made to fit most any need. At Standex, "CUSTOM IS STANDARD" from basic transformer coils to value added assemblies! Our reliable high-quality transformers, coils, inductors, and reactors meet a wide variety of applications. We offer low frequency transformers in the 50/60 Hz to 400 Hz range. Additionally, we specialize in high frequency transformers and power assemblies ranging from 20 kHz to RF. Also, our planar magnetics, power inductors and common mode chokes can be made with exact values from economic standard packages. Moreover, we offer industry-leading environmental and electrical testing performed in house. And, most of our products meet or can be designed to meet UL/CUL, CSA, VDE, and MIL-SPEC standards.

Moreover, we can engineer a custom solution that is on target and budget with our combined leading brand capabilities. ATC-Frost Magnetics, Northlake Engineering®, Agile Magnetics, Renco Electronics, and Minntronix are Standex Electronics brands with over 50 years’ experience. So, medical, military and aerospace design engineers trust Standex Electronics for custom electromagnetic components!

Northlake-EngineeringAgile-MagneticsRenco ElectronicsMinntronix Logo Power Magnetics product line brochure

Custom Power Magnetics and Assemblies

Standex Electronics designs and manufactures custom power magnetics and power conversion components are used across all major markets. We design single components which can include many value-add services as needed. For example, wiring harnesses, leads, molding, and stamping are just a few of the ancillary services we provide. Additionally, we can integrate our designs into up-stream and downstream components. That way, we simplify installation and reduce costs. So, we improve our customer’s quality of supply and critical resources. Moreover, our global footprint means that we can manufacture components close to where you need them! In summary, we reduce transit times and delivery costs, while simplifying your supply chain.

Our Power Magnetics Breadth

 

Power Magnetics Solutions

 

MIL-SPEC Magnetics

There is little room for error in military and aerospace systems. So, military designers rely on Standex Electronics for rugged MIL-SPEC magnetics. We provide space and flight grade custom power transformers, coils, inductors, and high reliability position sensors. Moreover, with expertise in several Mil/Aero specialties, Standex is uniquely qualified to design and manufacture custom components. And we back it up with the most up-to-date certified quality systems and procedures required for military and aerospace operation. Also, using our industry leading, state of the art environmental test lab, Standex is capable of completely testing these components ‘in-house’. Military and Aerospace Quality AS9100, ISO9001, IATF16949, ITAR & NIST

Military and Aerospace Specifications & Quality Approvals

  • AS9100 Certified
  • ISO9001 Certified
  • IATF16949 Certified
  • ITAR & NIST Compliant
  • ASTM E595
  • EEE-INST-002
  • IPC J-STD-001FS
  • IPC J-STD-006
 
  • NASA-STD-8739.3
  • NASA-STD-8739.4
  • MIL-I-45208
  • MIL-STD-981
  • MIL-PRF-21038
  • MIL-STD-202 In-House
  • MIL-T-27
  • MIL-PRF-27 Grade 4,5 & 6

Standex provides custom components for military and aerospace projects for land, sea and air. We serve programs such as the F-35 Joint Strike Fighter and other next generation fighter programs. Other programs include: aircraft controls, satellite and space applications, engine controls, power supplies, current transformers, and air core military antennas. Below are more high reliability programs currently utilizing our custom MIL-SPEC magnetics.

Currently Serving These High Reliability Programs

  • Kaman SH-2G Seasprite Ship-based Helicopter
  • Sikorsky CH-124 Sea King Submarine Warfare Helicopter
  • Phantom One
  • Terminal High Altitude Area Defense (THAAD)
  • Tactical Tomahawk (TacTom)
  • Boing 737, 767, 777, 787
  • AH-64 Apache Attack Helicopter
  • C-130J Hercules Military Transport Aircraft
 
  • F-35 Joint Strike Fighter
  • Boing F/A-18E & F/A-18F Super Hornet
  • Northrop Grumman RQ-4 Global Hawk
  • Predator Unmanned Aerial Vehicle (UAV)
  • CVN 80/81 Aircraft Carrier
  • Night Vision Goggle
  • Harpoon & SLAM-ER Smart Air-Launch Missle
  • MK 48 Mod 7 Advanced Sonar System

Whether these projects are in the design, prototype or production stage, Standex is ready to assist!

MIL-SPEC Magnetics

 

Custom MIL-SPEC Magnetics for Military and Aerospace Applications

  • MIL-PRF-27 Grade 5 PC mount toroidal transformers
  • Custom power chokes and inductor assemblies with engineered heatsinks and packaging
  • Ruggedized custom low profile Planar Transformers for thermal management and shock and vibe resistance
  • Compact surface mount pulse, gate drive, and flyback transformers for Aerospace applications
 
  • Custom coil assemblies for ordnance and other applications
  • High voltage transformers with special encapsulation, processes, and testing
  • Military grade 3-phase and cut core transformer and inductors and custom ATRU assemblies
  • Current sense transformers and custom assemblies

 

10kW-100kW Planar Transformers Size 2100 with 600A max current rating, frequency range 20-125kHZ. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull, Resonant LLC. High efficiency, ultra compact and interleaved design, low-profile. Excellent solder ability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins can reduce temperature rise on terminals. Various terminal options available.

10kW-30kW Planar Transformers Size 1100 Heatsink with 600A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

10kW-20kW Planar Transformers Size 900 Heatsink with 500A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

10kW-20kW Planar Transformers Size 900 with 500A max current rating, frequency range 20kHz-MHz+. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

3kW-10kW Planar Transformers Size 560 Heatsink with 400A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

3kW-10kW Planar Transformers Size 560 with 400A max current rating, frequency range 20kHz-MHz+. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

2kW-6kW Planar Transformers Size 350 Heatsink with 300A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

2kW-6kW Planar Transformers Size 350 with 300A max current rating, frequency range 20kHz-MHz+. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

1kW-3kW Planar Transformers Size 220 Heatsink with 250A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

1kW-3kW Planar Transformers Size 220 with 250A max current rating, frequency range 20kHz-MHz+. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

300W-1.2kW Planar Transformers Size 135 Heatsink with 100A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

300W-1.2kW Planar Transformers Size 135 with 100A max current rating, frequency range 20kHz-MHz+. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

150W-700W Planar Transformers Size 110 with 60A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull, Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

100W-500W Planar Transformers Size 075 with 50A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull, Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

50W-200W Planar Transformers Size 055 with 50A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Half Bridge, Forward (w/active rest), Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

20W-150W Planar Transformers Size 035 with 30A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Half Bridge, Forward (w/active rest), Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

10W-50W Planar Transformers Size 025 with 20A max current rating, frequency range 20kHz-MHz+ are available in surface mount (SMD) or through hole designs and forward (w/active rest), flyback topologies. Patented (U.S. PAT. 7,129,809) design with superior thermal management. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

PQ32 Series Planar Inductors

PQ32 Series Planar Inductors are fixed power inductors w/ferrite core available in surface mount (SMT) or through hole tab (THT) mounting style. Used in switching power supplies, DC/DC converters, FPGA and low/high profile current, high current POL converters, feedback control, overload sensing, load drop and shut down detection.

400 Hz Power Transformers 1.5 VA to 9 VA Mil Spec Magnetics

400 Hz Power Transformers 1.5 VA to 9 VA are miniature encapsulated toroidal transformers designed to meet the requirements of Mil-PRF-27/37 through /47. 308 standard designs from 1.5VA through 25 VA. A wide variety of output voltages offer maximum design flexibility. Contact Standex Electronics for your custom variation, engineered for your specific application.

Scott T Transformers Mil Spec Magnetics

Input Scott T Transformers synchro to resolver converter transformers are precision manufactured primarily for military and aerospace applications. Three-wire synchro angle data from the input to a Scott T transformer which isolates them from converter ground and translates them into two signals – the amplitudes being proportionate to the sine and cos. Contact Standex Electronics for your custom variation, engineered for your specific application.

2mH Switching Regulator Inductors Mil Spec Magnetics

2mH Switching Regulator Inductors featuring a completely encapsulated construction. Threaded mounting insert for additional mounting strength. Custom sizes and values may be engineered for your specific application.

10mH Switching Regulator Inductors Mil Spec Magnetics

10mH switching regulator inductors designed to meet the requirements of Mil-PRF 287, 288 and 289, featuring a completely encapsulated construction. Double winding styles available for more current capacity. Center hole for mounting. Custom sizes and values may be engineered for your specific application.

Planar Magnetics

Standex Electronics planar magnetics include custom and standard planar transformers and planar inductors. Our planar designs operate over a wide range of power and frequencies. Planar technology offers improved power density and performance compared to similar wire wound transformers. Therefore, planar technology is ideally suited in electric vehicle fast charging, battery management and military systems. Moreover, planar transformers continue to emerge in certain application “sweet spots”. For example, Mil-Aero applications benefit from planar solutions with increased performance without increased weight. In summary, planar designs boast high performance in a small footprint, while keeping their cool!

Submit custom planar transformer requirements

Planar Magnetics - planar transformers and inductors

“When you combine planar transformers with excellent engineering, you can get a solution that not only saves you space, time, and costs, but suits your needs uniquely and specifically.” 

Advantages of Planar Magnetics Technology

  • Extremely low profile
  • Low leakage inductance
  • High efficiency (98-99% to 40 kHz – 500kHz)
  • Reduced high frequency AC losses
  • Pre-tooled for excellent repeatability
  • Custom terminations
  • Standard sizes for custom designs
  • Easy cooling and enhanced thermal solutions
  • Weight and space savings
  • Low turns for low Cu loss
  • Optimized for low core loss
  • Meets 8mm clearance and creepage
 

Check out our Planar Magnetics Design Guide Planar Magnetics Design Guide

Planar Transformer & Inductor Applications

Standex planar magnetics can be customized to meet the critical power demands for a number of applications listed below. 

  • AC-DC resonant designs (1kW-250kW)
  • Aerospace & Military
  • Automotive, Electric & Hybrid Vehicles
  • Battery Management Systems
  • Distributed Isolated Power
  • Grid Energy Storage (10kW-250kW)
 
  • Renewable Energy (Wind & PV Systems)
  • Switch Mode Power Supplies
  • Telecommunications
  • Test Equipment
  • Welding & Lasers (1kW-250kW)

"Planar inductors are available for design in all packages."

10kW-100kW Planar Transformers Size 2100 with 600A max current rating, frequency range 20-125kHZ. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull, Resonant LLC. High efficiency, ultra compact and interleaved design, low-profile. Excellent solder ability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins can reduce temperature rise on terminals. Various terminal options available.

10kW-30kW Planar Transformers Size 1100 Heatsink with 600A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

10kW-20kW Planar Transformers Size 900 Heatsink with 500A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

10kW-20kW Planar Transformers Size 900 with 500A max current rating, frequency range 20kHz-MHz+. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

3kW-10kW Planar Transformers Size 560 Heatsink with 400A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

3kW-10kW Planar Transformers Size 560 with 400A max current rating, frequency range 20kHz-MHz+. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

2kW-6kW Planar Transformers Size 350 Heatsink with 300A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

2kW-6kW Planar Transformers Size 350 with 300A max current rating, frequency range 20kHz-MHz+. Patented (U.S. Patent 7,460,002) terminals offer mechanical strength and very low resistance. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals. Various terminal options available (SMD, Thru-hole, screw terminals).

1kW-3kW Planar Transformers Size 220 Heatsink with 250A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

1kW-3kW Planar Transformers Size 220 with 250A max current rating, frequency range 20kHz-MHz+. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

300W-1.2kW Planar Transformers Size 135 Heatsink with 100A max current rating, frequency range 20kHz-MHz+ are packaged in anodized aluminum heatsinks offering high thermal conductivity and removing heat from windings. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

300W-1.2kW Planar Transformers Size 135 with 100A max current rating, frequency range 20kHz-MHz+. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull. High efficiency (low losses), ultra compact, low-profile. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs. Large secondary pins reduce temperature rise on terminals.

150W-700W Planar Transformers Size 110 with 60A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull, Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

100W-500W Planar Transformers Size 075 with 50A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Full Bridge, Half Bridge, Full Bridge ZVS, Push-Pull, Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

50W-200W Planar Transformers Size 055 with 50A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Half Bridge, Forward (w/active rest), Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

20W-150W Planar Transformers Size 035 with 30A max current rating, frequency range 20kHz-MHz+. Patented (U.S. PAT. 7,129,809) design with superior thermal management. Topologies include Half Bridge, Forward (w/active rest), Flyback. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

10W-50W Planar Transformers Size 025 with 20A max current rating, frequency range 20kHz-MHz+ are available in surface mount (SMD) or through hole designs and forward (w/active rest), flyback topologies. Patented (U.S. PAT. 7,129,809) design with superior thermal management. High efficiency (low losses), ultra compact, low-profile. Great co-planarity of terminals due to patented header offering repeatable height. Excellent solderability (Pb-free or Pb/Sn Solder). Standard sizes / customer configurations, quick custom turn-around often without start-up or tooling costs.

PQ32 Series Planar Inductors

PQ32 Series Planar Inductors are fixed power inductors w/ferrite core available in surface mount (SMT) or through hole tab (THT) mounting style. Used in switching power supplies, DC/DC converters, FPGA and low/high profile current, high current POL converters, feedback control, overload sensing, load drop and shut down detection.

Standard Magnetics & Other

antennas and coils

Standex Electronics supplies antennas and coils using leading edge design and manufacturing technologies. Our products are used throughout the world in automotive keyless entry, garage door openers, and military sonobuoys in remote locations. Our immobilizer security antennas are used in many automotive, motorcycle and marine ignition systems – while our antenna coils are found on in-home security systems. The 125 KHz RFID antenna receivers can be custom molded into any configuration for virtually limitless applications.

Below are some examples of the various types of packaging we offer:

High Q Fixed Inductance RF Inductors – Packaged “tape and reel” for automatic assembly (165, 166, 168, 887, 888, 890, 891, 896)

  • Economical “Tape & Reel” alternative to axial lead RF inductors
  • Inductance values available from .003uH to .115uH
  • Economically precision molded in polypropylene plastic for long term electrical and mechanical stability

7mm variable inductors – Shielded and Unshielded (760, 761, 800, 126, 936 Series)

  • Unique lead break out allows more inductance values available than with other series
  • Available shielded or unshielded
  • Inductance values from less than .059uH to .87uH
  • Several core materials and lengths available
  • May be economically trimmed to a shorter height
  • Windings may be molded in alternate positions
  • Economically precision molded in polypropylene plastic for long term electrical and mechanical stability

10mm variable inductors – Shielded and Unshielded (910, 956, 957 Series)

  • Higher ‘Q’ than other shielded 10mm variable inductors (925, 926 Series)
  • Inductance values from less than .054uH to .855uH
  • Optional nickel plated brass cover provides electrical shielding and additional mounting stability
  • Several core materials and lengths available
  • Economically precision molded in polypropylene plastic for long term electrical and mechanical stability
  • More thermally stable than competing coils with similar Q and tuning range (950 Series)
  • Available shielded or unshielded (950 Series)
  • Available with two though 6 mounting pins (950 Series)
  • Inductances available from .11uH to nearly 10uH (950 Series)

Variable RF Inductors – Horizontally configured (155, 618, 460, 607, 620, Series)

  • Low profile design, excellent were there are height restrictions or side tuning is preferred
  • Inductance values from less than .023uH to 3.45uH
  • Several core materials and lengths available

Variable RF Inductors – Vertically configured

  • Inductance values from less than .043uH to .419uH (929, 138, 928 Series)
  • Inductance values from less than .045uH to .610uH with very high Q (308, 932, 408, 933 Series)
  • Inductance values from less than .05uH to 1.8uH with very high Q (202, 511 Series)
  • Inductance values from less than .038uH to 1.94uH with very high Q (478 Series)
  • Series 138 may be tapped in two positions; series 928 may be tapped in up to 6 positions
  • Several core materials and lengths available
  • May be economically trimmed to a shorter height
  • Windings may be molded in alternate positions
  • Economically precision molded in polypropylene plastic for long term electrical and mechanical stability

Tuning or alignment tools for Standex Variable inductors

  • Molded in economical high strength plastic for long life
  • Some models with a combination metal and plastic tips for rough and fine tuning
  • Some models are ‘combination tools’ available to tune several core sizes
TLE-TLB-FPT Series Line Frequency Magnetics/Other Packages

General purpose TLE TLB FPT Series Low Voltage Lighting power transformers with secondary protection and double insulation are suitable for low voltage lighting circuits. Dielectric strength tested to CSA/UL standards. Enclosed models include secondary circuit protection. Toroid models are supplied with necessary mounting hardware. Custom sizes, ratings and terminations may be engineered for your specific application. Some models CSA certified to TIL-B45 as suitable for use with “trapeze lighting systems”.

TA-TAE-FPT Series Line Frequency Magnetics/Other Packages

TA-TAE-FPT Series Auto power transformers are line frequency magnetics designed in an open, enclosed package with an economical method of changing voltage levels. These auto transformers are widely used to operate electrical equipment outside of North America. Typically 50% smaller than similar isolation transformers. All models are 50/60Hz, 230V-115V or 115V -230V. Laminated units are varnished impregnated for quiet operation with 10″ leads standard. Some models CSA / UL recognized LR16597, E105782. Class B – 130°C insulation system utilized. Dielectric standards to CSA/UL standards. Custom sizes, ratings and terminations may be engineered for your specific application.

FPS Series Line Frequency Magnetics/Other Packages

FPS Series Class 2 power transformers energy-limiting wall plug line frequency magnetic transformer with output voltage limited to meet the requirements for connection to Class 2 circuits as defined in the electrical code plugs into any North American standard duplex receptacle CSA (NRTL/C) certified to C22.2 No. 223-M91 and UL 1310. Rugged, high-impact, flame retardant thermoplastic enclosure with secondary screw terminals hidden and protected from accidental shorting. Also available with flexible secondary line cord and jacks for special applications. The fail-safe protection designed into the transformer allows the use of lightweight, unprotected “bell” wiring in applications such as door chimes, buzzers, intercoms, security devices, thermostats, central vacuum systems, low voltage lighting control, remote control, etc.

FTA Series Class 2 Transformers

FTA Series Class 2 power transformers energy-limiting cord connected line frequency magnetic transformer with output voltage limited to meet the requirements for connection to Class 2 circuits as defined in the electrical code CSA (NRTL/C) certified to C22.2 No. 223-M91.

CA Series Line Frequency Magnetics/Other Packages

Fully certified CA Series Class 2 power transformers are line frequency magnetics featuring a highly isolated, wired-in high impact resistant plastic case that requires no extra grounding. Available in 120V 60Hz primary models or 240V 50/60Hz primary models. Combination screw / .25″ male quick connect secondary terminals with integrated 1/2″ conduit nipple mounting and optional panel mount bracket available. Fuse-less energy limiting winding. CSA and UL approved models available. Custom sizes, ratings and terminations may be engineered for your specific application.

FPT Line Frequency Magnetics/Toroidal

FPT Series Power Toroidal Transformers offers 44 standard models from 15VA to 500 VA. Dual 115/230V 50/60Hz rated primary and dual secondaries for series or parallel selection with class B 130°C insulation system utilized. Low radiated magnetic field. CSA and UL recognized components LR16597, E105782. Dielectric tested to UL/CSA standards. Custom sizes, ratings and terminations may be engineered for your specific application. ATC-Frost UL / CSA family recognition assures fast, trouble free approval of your equipment. Toroidal transformer designs are typically 50% lighter and much more compact than traditional EI laminated transformers. Custom toroid transformer dimensions may be varied to accommodate alternate dimensional requirements such as low profile or slim line equipment. Low stray magnetic fields compared to traditional EI laminated transformers. Low noise – toroidal construction ensures that mechanical hum” will be minimal.

TRPH Series Line Frequency Magnetics PCB-mount

TRPH Series Horizontal Split Bobbin Power Transformers are line frequency magnetics designed for printed circuit board (PCB) mounting. Split bobbin construction provides for high isolation primary to secondary, low capacitive to minimize line noise, and require no electrostatic shield. Single 115V or dual 115/230V primaries. Split secondaries allow series, parallel or dual operation. CSA certified LR15697 and UL recognized E107872. Class B – 130°C insulation system. Custom sizes, ratings and terminations may be engineered for your specific application.

TRP-TRPD Series Line Frequency Magnetics PCB-mount

TRP-TRPD Series Low Voltage Rectifier Power Transformers are line frequency magnetics designed for printed circuit board (PCB) vertical mounting (TRP series is 6 pin and TRPD series is 8 pin). 0.5VA to 24VA single or dual primary voltages. 6 Pin 230 Volt 50/60Hz also available. CSA and UL recognized LR16597, E105782. Class B – 130°C insulation system. Custom sizes, ratings and terminations may be engineered for your specific application.

TRPL Series Line Frequency Magnetics PCB-mount

TRPL Series Power Transformers are line frequency magnetics designed for printed circuit board (PCB) mounting and have low inter-winding capacitance and require no electro-static shield due to separated windings. Dual Primaries 115/230V, 50/60Hz and 2.5VA to48 VA. Industry standard P.C. pin layout. CSA Certified LR 16597; UL recognized E105782. Ideal for solid state control and instrumentation as well as sing or dual output D.C. supplies. Custom sizes, ratings and terminations may be engineered for your specific application.

TRPI Series Line Frequency Magnetics PCB-mount

TRPI Series Low Voltage Rectifier Power Transformers are line frequency magnetics designed in a printed circuit board (PCB) mounted package with 2.5VA to 56VA and 4000VRMS isolation primary and secondary. Industry standard P.C. board layout. Dual primary/secondary windings for series/parallel operation. CSA/UL recognized components. Custom sizes, ratings and terminations may be engineered for your specific application.

TRC Series Line Frequency Magnetics PCB-mount

TRC Series Low Voltage Rectifier Transformers are line frequency magnetics designed in a chassis mount package – open style. CSA certified LR 16597 and UL recognized E105782. Conservative Class A operation with economical channel frame mounting. Split/dual bobbin operation. All secondaries center tapped Class B – 130°C insulation system used. Custom sizes, ratings and terminations may be engineered for your specific application.

TRB Series Line Frequency Magnetics PCB-mount

TRB Series Low Voltage Rectifier Transformers are line frequency magnetics designed in a printed circuit board (PCB) mounted – open style package. CSA certified LR 16597 and UL recognized E105782. Insulated 10″ TEW primary and secondary leads. Secondary winding center tapped. Custom sizes, ratings and terminations may be engineered for your specific application.

TAP Series Line Frequency Magnetics PCB-mount

TAP Series Telecomm Transformers are audio matching telecommunications line frequency magnetics designed for PC board (PCB) mount and feature an economical open P.C. frame mounting with bifilar winding for capacitive and resistive balance. Frequency response 200Hz to 15KHz and insertion loss less than 1.5 dB. Dielectric tested for 250 VRMS. Custom epoxy cast unit available as well as custom sizes, ratings and terminations may be engineered for your specific application.

FTP Series Line Frequency Magnetics PCB-mount

FTP Series Class 2 Transformers are line frequency magnetics designed in a printed circuit board (PCB) mounted package.  These transformers 2.5VA to 50 VA and dual primary voltage 115/230V 50/60 Hz. 400 VRMS dielectric strength tested. Bobbins and shroud meet UL94 VO rating. Most models use energy limiting fuse-less design. Split/dual bobbin construction provides for low capacitive coupling, minimizing noise. No electrostatic shield necessary. High isolation primary to secondary. Designed to meet CSA C22.2 No. 66 and UL1585. Custom sizes, ratings and terminations may be engineered for your specific application.

TRL Series Line Frequency Magnetics/Chassis Mount

TRL Series Low Profile power transformer is a line frequency magnetic component designed in a horizontal core mounted for In chassis or on chassis mounting with color coded flexible wire leads. Dual primary 125/230V 50/60 Hz. CSA certified LR15697 and UL recognized E107872. Custom sizes, ratings and terminations may be engineered for your specific application.

TRE Series Line Frequency Magnetics/Chassis Mount

TRE Series Low Voltage Rectifier power transformers are line frequency magnetics designed in bracket chassis mounted enclosed style and feature insulated 10″ TEW primary and secondary leads. CSA certified LR 16597 and UL recognized E105782. Secondary winding center tapped. Custom sizes, ratings and terminations may be engineered for your specific application.

TRCQ Series Line Frequency Magnetics/Chassis Mount

TRCQ Series Low Voltage Rectifier power transformers are line frequency magnetics designed for channel chassis mounting – open style with combination – solder or quick connect terminals. Split bobbin construction provides for high isolation primary to secondary, low capacitive to minimize line noise, and require no electrostatic shield. Center tapped secondary winding. CSA certified LR15697 and UL recognized E107872. Class B – 130°C insulation system. Custom sizes, ratings and terminations may be engineered for your specific application.

TRCI-TRBI Series Line Frequency Magnetics/Chassis Mount

TRCI-TRBI Series Low Voltage Rectifier power transformers are line frequency magnetics designed in a a bracket chassis mount package and feature a high isolation dual bobbin (UL 94VO) construction that is 4000 V RMS dielectric tested. 25VA to 175VA. CSA certified LR15697 and UL recognized E107872. Class B – 130°C insulation system and designed to meet international standards. Dual primary and secondary windings. Custom sizes, ratings and terminations may be engineered for your specific application.

TCE Series Line Frequency Magnetics/Chassis Mount

TCE Series Control Circuit power transformers are line frequency magnetics with enclosed chassis mounting to allow mounting of control circuit transformers outside of any other electrical enclosure and for coil protection. Access knockouts for cable are integrally provided. Attractive ASA61 grey enamel cover. Size reduced enclosures available. Fully varnish impregnated for quite operation. CSA-NRTL/C certified KR16597. 100VA to 1000VA. Custom sizes, ratings and terminations may be engineered for your specific application.

TCC-TCK Series Line Frequency Magnetics/Chassis Mount

TCC-TCK Series Control Circuit power transformers are line frequency magnetics designed in a channel frame mounted package. The most economical transformer style that provides voltage changes from distribution to control levels, and have isolated primary and secondary windings. UL CSA recognized – LR 16597, E105782 and class B – 130°C insulation system utilized. 8″ to 10″ flexible leads standard, custom terminations available as well as custom sizes, ratings and terminations may be engineered for your specific application.

TC Series Control Circuit power transformers are line frequency magnetics featuring a traditional heavy duty four-point bracket chassis mounting and binding head screw terminals. UL CSA recognized – LR 16597, E105782. Multiple primary and secondary voltage combinations available. Varnish impregnated and baked for quiet operation. Custom sizes, ratings and terminations may be engineered for your specific application.

FTC-FTD-FTK Series Line Frequency Magnetics/Chassis Mount

FTC-FTD-FTK Series Class 2 power transformers are line frequency magnetics chassis mount designed packaged used in low frequency applications.  These energy-limiting wired in transformer featuring a rugged all steel construction providing excellent heat dissipation and electromagnetic shielding. Fully threaded steel conduit nipple provides strong positive mounting. Secondary wiring terminals available in combination screw / .25″ male quick connects. Vacuum varnish impregnated and oven baked to insure quiet trouble free operation. Most models are Custom sizes, ratings and terminations may be engineered for your specific application.

CHC Series Line Frequency Magnetics/Chassis Mount

CHC Series Chokes are line frequency magnetics designed in a channel bracket mounted chassis for low frequencies with inductance to 30 henries – current to 10 amps. Termination via 8″ leads – other lead lengths optional. CSA certified LR 16597-50 for designs up to 70 Amps and 600 Volts. Vacuum varnish impregnated and oven baked for quiet operating. Custom sizes, ratings and terminations may be engineered for your specific application.

CHB Series Reactors are line frequency magnetics designed in an L’ bracket mounted chassis with inductance to 100 millihenries – current to 50 amps. Termination via screw terminals. CSA certified LR 16597-50 for designs up to 70 Amps and 600 Volts. Vacuum varnish impregnated and oven baked for quiet operating. Custom sizes, ratings and terminations may be engineered for your specific application.

SJ / SU Series Magnetics, Inductors & Chokes/Toroidal & SMD

SJ / SU Series High Frequency Toroidal Power Inductor packaged in a surface mount design (SMD) is ideal where space and weight are critical and surface mount is required. When used as power inductors, they may be connected for higher current lower inductance or lower current higher inductance. When used as 1:1 transformers (coupled inductors) they provide electrical isolation. May be manufactured with economical powdered iron cores or higher performance low loss cores. Other core materials available for a variety of applications and custom sizes and values may be engineered for your specific application.

CM Series Magnetics, Inductors & Chokes/Toroidal & SMD

CM Series High/Low Frequency Toroidal Common Mode Choke for EMI/RFI applications is designed for common mode noise up to 30 MHz on A.C. and D.C lines. Build your own standard part number to give exactly the value you require, within an economical family of standard core sizes. Available configured vertically or horizontally, with or without a base. Custom sizes and values may be engineered for your specific application.

CI CJ Series Magnetics, Inductors & Chokes/Toroidal & SMD

CI CJ Series High Frequency Toroidal Differential Mode Power Inductor used for switching power supply, EMI/RFI filter and other applications that require low radiated emissions. CI series inductors are designed primarily for switching power supply applications up to 75 KHz. CJ series power inductors are designed primarily for higher frequency switching power supply applications from 50 to 500 Khz. Build your own standard part number to give exactly the value you require, within an economical family of standard core sizes. Available configured horizontally or vertically, with or without a base. Custom sizes and values may be engineered for your specific application.

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