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Aerospace

Hybrid Solid-State Relays Provide Fast Operation

27 December 2016

VOR family of hybrid solid-state relays. Source: Vishay VOR family of hybrid solid-state relays. Source: Vishay Vishay Intertechnology, Inc. has expanded its VOR family of hybrid solid-state relays with four new devices designed to deliver superior electrical characteristics for telecommunications, industrial, security system and metering applications. Compared to similar solutions, the Vishay Semiconductors 1 Form A VOR1121A6, VOR1121B6, VOR2121A8 and VOR2121B8 provide faster, bounce-free switching and a wider operating temperature range, and are more cost-effective.

The new relays include the single-channel (VOR1121A6 and VOR1121B6) and dual-channel (VOR2121A8 and VOR2121B8) normally open single-pole, single-throw (SPST) switches. The hybrid architecture of the devices enables fast typical turn-on and turn-off times of 0.20 ms and 0.03 ms, and an ambient temperature range of –40° C to +100° C. A high-efficiency GaAIAs IRED enables low forward current on the input side. On the output side, high-performance MOSFET switches provide low on-resistance of 12 Ω to reduce power dissipation. The VOR1121A6 and VOR1121B6 can be figured for DC-only operation to reduce the on-resistance.

The VOR1121A6 and VOR2121A8 are offered in DIP-6 and DIP-8 packages, respectively, while the VOR1121B6 and VOR2121B8 feature SMD-6 and SMD-8 packages. All four devices offer a high isolation test voltage of 5300 VRMS and load voltages of 250 V. The solid-state relays are VDE- and UL-certified to meet the insulation requirements for most applications. All devices are manufactured in-house on a highly integrated production line.

Typical applications include alarm and telecom switches, I/O cards, automation, battery management systems and automatic test equipment.

Samples and production quantities of the solid-state relays are available now, with lead times of four to six weeks for large or



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