Sidac for Gas Igniter Circuit

Design Notes:
Protection Application:
Sidac devices are used as switch on device for Igniter Circuits. Operation Note: The resistor is usually chosen to achieve a spark interval of 100 – 250 mili second.
Solution Description:
For a voltage exceeding the Sidac breakover voltage point, the Sidac swathes on through a negative resistance region to a low on-state voltage. Conduction continues until the current is interrupted or drops below the minimum holding current of the device. K2400G is commonly used in this application.
Companion Solutions:
K277 is new Sidac for high energy ignition systems which could replaces many GDTs.
Regulatory Issues:
Does not apply.
Unique Features:Does not apply.
Application Warnings:Does not apply.

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