Bistable Relay DPDT (Single Coil)
Miscellaneous
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Generic
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Curated by CircuitSim
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Used in 1 public circuit
Details
Manufacturer
Generic
Part number
—
Pins
8
Used in
1 circuit
Added
Oct 2026
About this component
A single-coil latching relay with two isolated changeover contact sets that switch together. Positive coil current sets both poles, reverse current resets them, and the contacts retain their state when coil current stops. Each simulation starts reset.
Parameters
Basic settings
4 parameters
COILRESISTANCE
Coil resistance
Series resistance of the polarized coil.
125 Ω
COILINDUCTANCE
Coil inductance
Series inductance of the coil; its electrical time constant is inductance divided by resistance.
50m H
SETCURRENT
Set current
Positive Coil+ to Coil− current that selects NO. Must be positive.
20m A
RESETCURRENT
Reset current
Magnitude of reverse coil current that selects NC. Must be positive.
20m A
Advanced
2 parameters
ONRESISTANCE
Contact on resistance
Resistance of each selected contact path.
0.1 Ω
OFFRESISTANCE
Contact off resistance
Resistance of each open contact path. Keep greater than the on resistance.
1e9 Ω
Pins
Pins
8 pins
1
Coil+
Positive current into Coil+ sets both poles; reverse current resets both poles.
2
Coil−
Return for set pulses and positive terminal for reverse reset pulses.
3
COM A
Common terminal of pole A, electrically isolated from the coils and pole B.
4
NO A
Pole A contact selected in the set state.
5
NC A
Pole A contact selected in the reset state.
6
COM B
Common terminal of pole B, electrically isolated from the coils and pole A.
7
NO B
Pole B contact selected with NO A by the shared latched state.
8
NC B
Pole B contact selected with NC A by the shared latched state.
Public circuits using this component
Circuits
1 circuit
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