SCR TN22-1500T HOLDING CURRENT VALUE IS FOUND TO BE MUCH LESS THAN THE VALUE GIVEN IN THE SPEC DATASHEET. I AM GETTING THE HOLDING CURRENT OF ONLY 26MA WITH THIS SCR, INSTEAD OF 175MA MINIMUM . WHAT CAN BE THE REASON FOR THIS?

[AMAHA.9]

I HAVE USED IT IN A TEST CIRCUIT TO CHECK /VERIFY ITS SPECS.

APPLIED VOLTAGE ACROSS ANODE/CATHODE IS 13.2 V DC.

GATE TRIGGER VOLT IS 1.6V DC +

SCR LOAD CURRENT IS 26MA.

UNDER THIS CONDITION, THE SCR IS GETTING LATCHED & HOLDING ON EVEN WITH

NO GATE INPUT .