Extended stand-off voltage for high voltage reed relays

21-01-2022 | Pickering | Connectors, Switches & EMECH

Pickering Electronics has increased the stand-off voltage values for its small-size Series 104 high voltage reed relays for up to 4kV. This means a 1000VDC stand-off voltage improvement on the previous Series 104 product offering for the newly introduced versions.


"The higher stand-off voltage improves the performance of the relay and allows for an increase in the equipment specification. It also means an increased high voltage protection margin for extra safety and security," commented Kevin Mallett, technical specialist at Pickering Electronics.


Series 104 high voltage isolation reed relays are ideal for transformer and cable testing applications or any other automatic test equipment where high voltages are involved. Where mains voltages switch, for example, to control and isolate SCR or triac gates, the devices are ideal.


Four types of dry switches are available for stacking on 0.25" pitch and capable of standing-off 1.5, 2, 3 or 4kVDC. The 3kV and 4kV versions benefit from an increased clearance between the switch and coil pins to accommodate the higher voltage. Higher voltage ratings are available upon request.


The range features one or two switches in a single package, 1 Form A, 2 Form A and 1 Form B configurations, and 5V, 12V or 24V coils with optional internal diode.


The internal mu-metal screen removes problems that would be experienced due to magnetic interaction when the relays are closely stacked.


Mercury wetted devices are also offered for applications where bounce-free switching is needed. These are rated at 1500VDC minimum stand-off and 500VDC switching at up to 50W.


As standard, the Series 104 comes with a 25+ years product longevity promise.

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