Why is the COM terminal color different in basic switches?
Because the COM terminal has a connecting portion with other internal conductive parts, only the COM terminal is plated to increase conductivity inside the switch.
・COM terminal: copper alloy + silver plating
・SPST-NO, SPST-NC: copper alloy
Our basic switch models with different color are as follows.
Tab terminal specification. All terminals to be soldered are silver plated to improve solderability.
Model SS. All other types have all the terminals silver-plated.
All the terminals are silver-plated.
Switches Basic Switches
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Switches | DigiKey Electronics
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