Stand-off voltage increases for small, Series104 reed relays
Improved performance and a high voltage isolation protection margin are benefits of the Series 104 4kV relays, says Pickering Electronics. The company has increased the stand-off voltage values for the small high voltage reed relays, with a 1000V DC stand-off voltage improvement on the previous Series 104 offering.
According to Kevin Mallett, technical specialist at Pickering Electronics, the higher stand-off voltage improves the performance of the relay, allows for an increase in the equipment specification and means an increased high voltage protection margin for extra safety and security.
Series 104 high voltage isolation reed relays are ideal for use in applications such as transformer and cable testing or any other automatic test equipment where high voltages are involved. They are suitable, for example, where mains voltages switch to control and isolate a silicon controlled rectifier (SCR) or triac gates.
Four types of dry switches are available for stacking on a 0.25-inch pitch and capable of standing off 1.5, 2.0, 3.0 or 4.0kV DC. 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 Series 104 range features one or two switches in a single package, 1 Form A, 2 Form A and 1 Form B configurations as well as 5.0, 12 or 24V coils with optional internal diode.
The internal mu-metal screen eliminates problems that would be experienced due to magnetic interaction when the relays are closely stacked.
Mercury-wetted devices are also available for applications where bounce-free switching is required. These are rated at 1500V DC minimum stand off and 500V DC switching at up to 50W.
Samples of the reed relays are available from evaluation, free of charge. The Series 104 comes with a 25+ years product longevity promise, as standard.
Pickering Electronics was formed over 50 years ago to design and manufacture high quality reed relays, intended principally for use in instrumentation and test equipment. Today, Pickering’s single-in-line (SIL/SIP) reed relays are sold in high volumes to large automatic test equipment and semiconductor companies throughout the world.
