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Preferred orientation for each electrical connection ?

2016-06-28 by alan00463@...

I'm making my first PCB for a thermostat for
an electric heater. I need to connect the
electronics to several outside components:

- a thermistor that goes in the oven
- an thermal fuse to shut off power if it gets too hot
- battery power & ground
- 3-conductor connector to an external solid-state relay

I plan to use pin headers and matching sockets for each of
these four connections. For each of these four connections,
what criteria should I use to determine whether to put the
pin header on the PCB and the matching socket on the connect-
ing cable, or vice versa ?

The thermostat itself and the SSR will fit into a plastic box that
also contains the battery. So my question pertains to orient-
ing the headers/sockets inside the plastic box. None of
the connections will ever be disconnected without first removing
four retaining screws from the lid of the plastic box.

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