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BH Series Reed Relay


The BH Series is a High-Power Relay capable of switching up to 1 kVDC, while providing a breakdown voltage of 3 kVDC and higher across the open contacts.

Thanks to the integrated Electrostatic Shield and axial switch leads, the BH relay ensures High Insulation Resistance of 10 TOhm across open contacts as well as between coil and contacts, and thus very Low Leakage Current in the picoamperes range.
The outer Magnetic Shield protects the relays against a mutual interaction and therefore allows an assembly with higher density.

This variable Multi-channel Dry-switch design can be built with up to 4 switches Form A and, thanks to its features such as reliable switching behavior, long lifetime and Low Contact Resistance (ON-Resistance), it makes an ideal relay for precise testers, automated test equipment or an alternative for Mercury Relays.


Coil Voltage (VDC)5, 12, 24
Coil Resistance (Ω)100-1600
Contact Form1A-4A (SPST) Normally Open (N.O.)
Rated Power Max.100W/1000VDC/1A
Breakdown Voltage3kVDC and above


Automated test equipment (ATE), high-insulation / high-accuracy testers, test equipment for semiconductors, high-voltage industrial application, general purpose test & measurement, replacement of mercury wetted relays

Seriendatenblatt (PDF)


Artikel Nr.DatenblattDistributorenRegionStückzahlWarenkorbAnfragemenge / RFQInventurdatum
BHStandex FactoryAmericas0 Anfragemenge / RFQ2023-05-29

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Ergänzende Produkte

BE Reed Relais mit verschiedenen Rasterbelegungen und einer hohen Lebensdauer. Vielseitig einsetzbares Standardrelais im Kunststoff- oder Metallgehäuse. Verfügbar als thermospannungsarme, bistabile oder hohe Isolationsausführung bis 10^13Ω.

H Reed Relais für Schaltspannungen bis 10 kVDC und Durchbruchspannungen bis 15 kVDC. M4 Schraubbefestigung möglich, ersetzt Quecksilberschalter.

HE Reed Relais zur Printmontage für Schaltspannungen bis 10 kVDC und Durchbruchspannungen bis 15 kVDC. Hochspannungsrelais mit einer Kriechstrecke >26mm, Ausführung mit Hochspannungskabel möglich.

HM Reed Relais für Schaltspannungen bis 10 kVDC und Durchbruchspannung bis 15 kVDC. Hochspannungsrelais mit einer Kriechstrecke >32mm, optional als bistabile Version, zur Printmontage und mit Kabelanschlüssen.

LI Reed Relais für Hochspannungsapplikationen schaltet bis zu 1k VDC/Durchbruchspannung 4,5k VDC. HV Relais mit einem Hochspannungsisolationswiderstand >10^13, Isolationsspannung Spule – Kontakt.

SHV Reed Relais schaltet bis 1k VDC/Durchbruchspannung 4k VDC mit einem Hochspannungsisolationswiderstand von >5 x 10^12 Ω. Gegenüber herkömmlichen Hochspannungsrelais wird der Platzbedarf auf der Leiterplatte um ein Vielfaches reduziert. Das SHV Reed Relais ist noch kleiner und kompakter als sein Vorgänger, das SIL-HV Reed Relais.

UL – Certificate of Compliance

Technische Informationen



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Welcome to Standex Electronics' RF Reed Relays Part I training module. Reed relays have long been known to have the capability to switch and carry RF signals and fast digital pulses. Hardly anyone thought reed relays were capable of switching and carrying RF up to 20 GHz, because the reed switch's leads are composed of nickel/iron which has a relatively high permeability or (MU). However, 20GHz is now a reality at Standex Electronics. We will be presenting the reasons Standex Electronics and their design team have made this possible.

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