Spark Gap

Official

Miscellaneous

·

Generic

·

Curated by CircuitSim

·

Used in 3 public circuits

Spark Gap schematic symbol
Details

Manufacturer

Generic


Part number

—


Pins

2


Used in

3 circuits


Added

Oct 2026

About this component

Symmetric two-terminal spark-gap model that ignites at a breakdown voltage and extinguishes below a holding current, with finite arc voltage and resistance.

Parameters

Basic settings
7 parameters
ParameterNameDescriptionDefault

RON

Arc resistance

Positive slope resistance added to the arc-voltage drop.

10 Ω

CPAR

Gap capacitance

Small capacitance between the electrodes.

2p F

ROFF

Off resistance

Leakage resistance in the nonconducting state.

1e12 Ω

VARC

Arc voltage

Approximate constant voltage drop during conduction, before the resistive drop.

20 V

DELAY

Switching delay

Finite latch and transition delay that resolves ignition and extinction events.

50n s

IHOLD

Holding current

Conduction ends when current falls below this magnitude and voltage has fallen below 90% of breakdown.

10m A

VBREAK

Breakdown voltage

Absolute terminal voltage that starts conduction; choose Vbreak > Varc.

300 V

Pins

Pins
2 pins
NumberNameDescription

1

P

Symmetric electrode; polarity does not affect the ignition threshold.

2

N

Symmetric electrode; polarity does not affect the ignition threshold.

Public circuits using this component

Circuits
3 circuits
Circuit nameCreated byLast updated
Marx Generator

CircuitSim

Oct 3, 2026

Tesla Coil

CircuitSim

Oct 3, 2026

Spark-Gap Sawtooth Oscillator

CircuitSim

Oct 3, 2026

See all public circuits using this component

Drop Spark Gap into your circuit

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