Switch - SPDT

Official

Passives

·

Generic

·

Curated by CircuitSim

·

Used in 14 public circuits

Switch - SPDT schematic symbol
Details

Manufacturer

Generic


Part number

—


Pins

3


Used in

14 circuits


Added

Jul 2026

About this component

A three-terminal single-pole double-throw switch whose state connects the common terminal to one of two throws.

Parameters

Basic settings
5 parameters
ParameterNameDescriptionDefault

RON

On resistance

Resistance of the switch when closed.

100u Ω

ROFF

Off resistance

Resistance of the switch when open.

100G Ω

STATE

State

Switch state: 0 connects COM to NC; 1 connects COM to NO.

0

RESISTANCENC

NC contact resistance

Computed COM-to-NC contact resistance from on resistance, off resistance, and switch state.

— Ω

RESISTANCENO

NO contact resistance

Computed COM-to-NO contact resistance from on resistance, off resistance, and switch state.

— Ω

Pins

Pins
3 pins
NumberNameDescription

1

NC

Normally-closed throw. Connected to COM when State is 0.

2

COM

Common movable switch contact.

3

NO

Normally-open throw. Connected to COM when State is 1.

Public circuits using this component

14 total

Circuits
4 circuits
Circuit nameCreated byLast updated
New Circuit

bmaloney9159

Oct 2, 2026

Counter Circuit

msorola

Oct 2, 2026

counter circut

nserna8890

Oct 2, 2026

New Circuit

guhl1069

Oct 2, 2026

See all public circuits using this component

Drop Switch - SPDT into your circuit

Official component · simulated with full SPICE accuracy · free to get started.