How to distinguish the positive and negative terminals of TVS diodes?

How to distinguish the positive and negative poles of TVS diodes in applications?

The positive and negative terminals of TVS diodes are generally measured with a multimeter

Measure the gear of the diode, with a connection on one side and voltage on both sides in both directions;

The avalanche breakdown characteristics of DC measurement are bidirectional symmetric, only reverse unidirectional. Generally speaking, it measures at 1mA.

After amplification, all TVS diodes will have a cathode line to distinguish the positive and negative poles of the diode, which is independent of unipolar and bidirectional.