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Wes[_2_] Wes[_2_] is offline
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Default photo eye NPN vs. PNP

Bruce L. Bergman wrote:

As for pre-installing the Back EMF Snubber on stock products, they
never know what type or voltage relay you're going to use with that
relay socket. But it would be a cool and useful factory option if you
are ordering production quantities of relay sockets.


Good point on the 1N4XXX. Should not have trusted memory. As far as the prewired diode,
I wanted it in the relay itself. AB makes some dc coil control relays with an internal
snubbing diode.

Wes