DEC 871 / 874 power controller engineering drawings?

Mattis Lind mattislind at
Thu Sep 8 13:58:23 CDT 2016

Is there engineering drawings online for the DEC 871 or 874 power

I have one with a failed solid state relay and I cannot figure out the spec.

One is an Opto-Film OFA-2402H and the other is a CLARE  203A05A3A

But I cannot find a data sheet for any of those. Does anyone know a
compatible replacement device? The pinout is not something I can find
amongst the ones at Mouser.


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