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Latching SPST on-off switch

Switch (Toggle, Rocker and DIP) Internal Circuitry

Explore the internal circuitry and functional stages of Switch (Toggle, Rocker and DIP).

Package view

Inside Switch (Toggle, Rocker and DIP)

Lever, spring plunger, rocking contact and lugs.

Cutaway of a miniature toggle switch: the bat lever pushes a spring plunger onto a rocking contact that bridges the centre common lug to one end lug; OFF and ON positions.
Functional cutaway; proportions simplified.

Explore the circuit

Select a stage to see its role and connections

Lever and plunger

The lever pivots in the bushing; inside, a spring plunger rides on the moving contact.

Snap action

Past the centre, the spring tips the contact over: it never rests half-way.

Lugs

The centre lug is common; one end lug closes with it in each position.

Component view