The Basic Characteristic of the P

The principle introduction

Operation

In the standby mode, P devices exhibit a high off-state impedance, eliminating excessive leakage currents

and appearing transparent to the circuits they protect. Upon application of a voltage exceeding the switching

device is either interrupted or drops below the P device’s holding current (I

reset and return to their high off-state impedance.

Figure1 V-I Characteristics

Figure2 tr x td Pulse Wave-form

Figure3

Figure4

Normalized DC Holding Current

Thyristor/SMA Series

REV.2014.05.01

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