The CPC1977J is a single-pole, normally open solid state relay designed for AC and DC load switching, utilizing optically coupled MOSFET technology with 2500V rms input-to-output isolation. It is packaged in an i4-PAC case with dimensions of 20.396 mm × 17.221 mm × 5.029 mm and features a Direct Copper Bond ceramic substrate that provides a junction-to-case thermal impedance of 0.35 °C/W. The relay supports a continuous load current of 1.25 A rms with no heat sink and up to 3.1 A rms with a 5 °C/W heat sink, while blocking up to 600 V. Its maximum on-resistance is 1 Ω, and it meets UL 508 and EN IEC 62368-1 safety standards. The device is not for new designs.
Optically isolated MOSFET-based solid state power relays in i4-PAC and ISOPLUS-264 packages feature Direct Copper Bond ceramic substrates that enable substantially lower junction-to-case thermal impedance. They are available in AC/DC and DC-only versions. For power applications requiring a heat sink for superior thermal performance, the i4-PAC and ISOPLUS-264 power relays are an ideal solution. Current Loads up to 15 Arms @ Tc=25°C Dc Loads up to 32 A at 25°C 2.5 kVrms Input-to-Output Isolation Load Voltage ratings up to 1 kV Low On-resistance down to 50 mΩ Low input control current Low thermal junction to case impedances: 0.35°C/W - i4-PAC 0.30°C/W - ISOPLUS-264
Relay (Solid-State) RoHS Compliant: Yes
| Littelfuse, Inc. | Newark, An Avnet Company | |
|---|---|---|
| Product Category | Solid State Relays | Electromechanical Relays |
| Product Number | CPC1977J | 82H6139 |
| Product Name | Normally open output for AC and DC load switching | Relay (Solid-State) Rohs Compliant Ixys Semiconductor |
| Isolation Voltage | 2.5 kilovolts |
