SIP Relay Provides Up to 4000V Input-to-Output Isolation


Rated for up to 1A DC/1Arms continuous current load

CHICAGO — IXYS Integrated Circuits Division, now part of Littelfuse, Inc., introduced the CPC1984Y, a 600V, Normally Open Power SIP Relay, rated for up to 1A DC/1Arms continuous load current, twice the load current of the company’s most popular power relay. This high-reliability device uses optically coupled MOSFET technology to provide 4000Vrms of input-to-output isolation. In fact, the CPC1984Y SIP Relay offers the best combination of load voltage and load current available with a 4000Vrms isolation voltage. The optically coupled outputs, which employ IXYS ICD’s patented OptoMOS architecture, are controlled by a highly efficient infrared LED.

With a typical on-resistance rating of just 0.51 Ohms and a maximum rating of just 0.66 Ohms, the CPC1984Y offers significantly lower on-resistance than competitive devices. Its 600V blocking voltage rating provides sufficient design margin for both 110Vrms/220Vrms power line applications for universal power supplies.

CPC1984Y SIP Relays offer these key benefits:

  • Low drive power requirements reduce the CPC1984Y’s power consumption.

  • Snubbing circuits aren’t needed to suppress arcs when switching.

  • Flammability rating of UL 94 V-0 ensures high flame retardance of the device’s plastic package.

The CPC1984Y SIP Power Relays are in volume production, and samples are available through any authorized IXYS ICD distributor. For a listing of IXYS ICD distributors, please visit They are provided in a 4-Pin (8-Pin Body) Power SIP package, in quantities of 25 per tube.

For More Information
Additional information is available on the Power Relays (MOSFET-based) page. For technical questions, please contact: IXYS ICD Marketing and Technical Support.