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SCR (thyristor) (BT151)

Thyristors · C106 · BT151

C106D · 4 A · 400 V · gate trigger 200 µA · holding 3 mA · once triggered it latches on until the current falls below holding

SCR (thyristor) (BT151) on the simulator's bench

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.

Typical part: Silicon controlled rectifier

Pins

K (cathode)
A (anode)
G (gate)

Ratings and limits

V_DRM	400 V
I_T	4 A
I_GT	200 µA
I_H	3 mA

How to use it

A gate pulse latches it on; it stays on until the anode current drops below holding. Crowbars, battery chargers and controlled rectifiers.

Lessons and builds that use it

SCR crowbar over-voltage protection

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