CPC1978

i4-PAC™ Power Relay

www.clare.com

DS-CPC1978-R04

1

RoHS

2002/95/EC

Applications

Features

Description

Ordering Information

Parameter

Rating

Units

Blocking Voltage

800

V

P

Load Current, T

A

rms

With 5°C/W Heat Sink

1.85

No Heat Sink

0.75

On-resistance

2.3

Ω

0.35

°C/W

Pin Configuration

Part Number

Description

CPC1978J

i4-PAC 25 per tube

Switching Characteristics of

Normally Open (Form A) Devices

Clare and IXYS have combined to bring OptoMOS®

technology, reliability and compact size to a new

family of high power solid state relays.

As part of this family, the CPC1978 single pole

normally open (1-Form-A) solid state power relay is

rated for up to 1.85A

a 5ºC/W heat sink.

The CPC1978 employs optically coupled MOSFET

technology to provide 2500V

isolation. The output is constructed with efficient

MOSFET switches and photovoltaic die that use

Clare’s patented OptoMOS architecture while the

input, a highly efficient GaAlAs infrared LED provides

the optically coupled control. The combination of

low on-resistance and high load current handling

capability makes this relay suitable for a variety of

high performance switching applications.

The unique i4-PAC package pioneered by

IXYS allows solid state relays to achieve the highest

load current and power ratings. This package

features a unique IXYS process where the silicon

chips are soft soldered onto the Direct Copper

Bond (DCB) substrate instead of the traditional

copper leadframe. The DCB ceramic, the same

substrate used in high power modules, not only

provides 2500V

resistance (0.35 °C/W).

Sink Applications

Approvals

3

-

4

+

12

CONTROL

I

LOAD

10%

90%

+

+