Homebrew PCBs

Whichever side of the mating connector pairs that has a voltage present when disconnected should be the most physically protected,  usually the female (socket) side.  Based on that I would say the following would be the proper choice.

Thermistor – probably doesn’t matter

Thermal fuse – socket header on board (assumes a voltage would be present on the board connector if the pair were disconnected)

Battery power and ground – pin header on board 

Ext relay – socket connector on board

 

Mike  K5ESS

 

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] 
Sent: Tuesday, June 28, 2016 4:20 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Preferred orientation for each electrical connection ?

 

  

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 
fo ur retaining screws from the lid of the plastic box.