Fault protected SSR with integrated current limiting and thermal shutdown

19-01-2021 | Littelfuse | Connectors, Switches & EMECH

Littelfuse has released the CPC1561B Solid State Relay (SSR). The CPC1561B is claimed to be the highest current (1A, 60V) normally-open SSR currently available on the market to combine both current limiting and thermal shutdown circuits.


The small, surface-mount SSR’s dual fault protection benefit gives a rugged solution for demanding applications that are impossible when employing electro-mechanical relays and standard SSRs.


Typical markets and applications for the device include smart homes, instrumentation, building automation, and battery-powered applications


“The CPC1561B is ideal for markets and applications that cannot be down for long periods of time due to overcurrent, overtemperature and electrical stress,” said Steve Andrezyk, director of Marketing for Littelfuse-IXYS Integrated Circuits. “The CPC1561B output relay can survive harsh conditions and resume normal operation once the fault is removed, thus reducing product downtime and potentially eliminating service call time as the SSR both protects itself and resets to resume normal operation.”

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