Electronics Handbook/Components/Switches

From Wikibooks, open books for an open world
Jump to navigation Jump to search


Switches is a mechanical tool used in electronics to open or close a circuit.

Switch Operation[edit]

Opened Switch, I ≠ 0 . Circuit is closed
Closed Switch, I = 0 . Circuit is opened

Types of Switch[edit]

Switches Symbol Operation
Single Pole Single Throw SPST-symbol.png
Single Pole Double Throw SPDT-symbol.png
Double Pole Single Throw DPST-symbol.png
Double Pole Double Throw DPDT-symbol.png