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SMP-40 Photo-MOSFET Relay


The SMP-40 Photo-MOSFET Relay series is a solid-state relay featuring switching up to 1500V AC or peak DC, in a very small SMD (surface mount design), or DIP (dual-in-line package). It also features a low output capacitance of 83pF and a low off-state leakage current of 1μA. Photo-MOSFET Relays also feature fast switching, no contact bounce, low noise, impervious to dirty environments, shock/vibration proof, extremely high input to output isolation, control low-level analog signals to high-level loads: (LED’s, relays, lamps, solenoids). The added benefit of stable on resistance, long life and high reliability make the SMP-40 Photo-MOSFET Relay series ideal in many applications.


Contact Form1A
Package Style (Pin Count)DIP6, SMD6
Load Voltage (V) AC/DC1500
Load Current Max. (mA)45
LED Operate Current Typ/Max. (mA)0.9/5.0
On Resistance Typ/Max. (Ω)180/300
Output Capacitance (pF)83
Off-State Leakage (μA)10


Automotive (AEC-Q101), Automated Test Equipment (ATE), Electric Vehicles, I/O Modules, Industrial, Medical Equipment, Sensing Equipment, Solar Battery Management, Telecommunications & Security Equipment

Series Data Sheet (PDF)

Stock Check

Item No.DatasheetDistributorRegionQuantityCartRFQInventory Date
SMP-1A40-6DT Electro Sonic GroupAmericas0 RFQ2024-07-15
SMP-1A40-6ST Electro Sonic GroupAmericas0 RFQ2024-07-15
SMP-1A40-5STHeilind ElectronicsAmericas0 RFQ2024-07-13
SMP-1A40-6ST Heilind ElectronicsAmericas0 RFQ2024-07-13
SMP-1A40-6ST Digi-Key ElectronicsAmericas0 RFQ2024-07-15
SMP-1A40-6DT Digi-Key ElectronicsAmericas0 RFQ2024-07-15
SMP-1A40-6ST MASTER/ONLINEAmericas0 RFQ2024-07-15
SMP-1A40-6DT MASTER/ONLINEAmericas0 RFQ2024-07-15
SMP-1A40Standex FactoryAmericas0 RFQ2024-07-15
SMP-1A40-6ST Mouser ElectronicsAmericas0 RFQ2024-07-15
SMP-1A40-6DT Mouser ElectronicsAmericas0 RFQ2024-07-15
SMP-1A40-6DT Arrow ElectronicsAmericas2 BUY RFQ2024-07-15
SMP-1A40-6DT TTI Inc Global HeadquartersAmericas0 RFQ2024-07-15
SMP-1A40-6ST TTI Inc Global HeadquartersAmericas0 RFQ2024-07-15

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Associated Parts

The SMP-38 Photo-MOSFET Relay series is a solid-state relay featuring switching up to 600V AC or peak DC, in a very small SOP (small-outline package), SMD (surface mount design), or DIP (dual-in-line package). It also features a low output capacitance of 47pF and a low off-state leakage current of 1μA. Photo-MOSFET Relays also feature fast switching, no contact bounce, low noise, impervious to dirty environments, shock/vibration proof, extremely high input to output isolation, control low-level analog signals to high-level loads: (LED’s, relays, lamps, solenoids). The added benefit of stable on resistance, long life and high reliability make the SMP-38 Photo-MOSFET Relay series ideal in many applications.

Technical Papers

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