Hybrid solid state relays provide fast switching times and reliability

Hybrid solid-state relays available from Vishay Semiconductors, now include three devices designed to deliver high reliability and noiseless switching for telecommunications, industrial, security system, and metering applications. The VOR1142B4, VOR2142A8, and VOR2142B8 are replacements for traditional electromechanical relays and feature higher reliability and longer lifetimes, claims the company, as well as fast switching times, current limit protection, and low power consumption.

The single-channel, VOR1142B4 and dual-channel VOR2142A8 and VOR2142B8 normally open single-pole, single-throw (SPST) switches. The modular hybrid construction allows high-performance MOSFETs for the switch output.

The VOR1142B4 is offered in the SMD-4 package, while the VOR2142B8 is available in the SMD-8 and the VOR2142A8 features the DIP-8. All three devices offer a high isolation test voltage of 5,300VRMS, load voltages up to 400V, and a very low turn-on current of 0.25mA typical. The solid-state relays are VDE- and UL-certified to meet reinforced insulation requirements for most applications.

The three relays offer clean, bounce-free switching over an ambient temperature range of -40 to +100°C. Typical applications will include alarm switches, I/O cards, automation, battery management systems, and automatic test equipment. The devices are RoHS-compliant and halogen-free. Samples and production quantities are available now.


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