Electronics - Thyristors and Tranducers - Discussion

Current flows from cathode - anode, which is reverse direction. That's why it is reverse gate lekage current.

Current flows from anode to cathode.

This device is generally used in switching applications. In the normal "off" state, the device restricts current to the leakage current. When the gate-to-cathode voltage exceeds a certain threshold, the device turns "on" and conducts current. The device will remain in the "on" state even after gate current is removed as long as current through the device remains above the holding current. Once current falls below the holding current for an appropriate period of time, the device will switch "off". If the gate is pulsed and the current through the device is below the latching current, the device will remain in the "off" state.

Hence the holding current is the smallest current which can pass through SCR. Below this, the device turns off. Please correct me if I am wrong.

I think it is holding current, it is the maximum current that can hold the SCR in conduction.

The answer is wrong, the answer is holding current, the SCR will be turned on until the anode cathode current is less than this holding current.

Holding current is the correct answer.

I agree, the minimum current needs for conduction is Holding Current.

Yeah, I agree with you all.

Holding current is the minimum current above which device start its conduction and remains ON.

Holding current is from Anode to Cathode when Gate is triggered. But this case its the Cathode to Anode current, so answer might be Reverse Gate Leakage Current.

Holding current is the right answer.