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TVS3300: ESD test among TVS3300 and TVS diode

Part Number: TVS3300
Other Parts Discussed in Thread: STRIKE

Hi,

My customer run ESD test and compare the result among TVS diode and TVS3300.

Test Condition:

TVS diode test result

TVS3300 test result :

IN voltage of TVS3300 reduce soon after attaching ESD. The voltage of TVS diode keeps about 40V after attaching ESD.

Could you please give me advice why the voltage of TVS3300 reduce soon?
I guess the parastic diode in TVS3300 is small and it discharge much faster than TVS diode. Is it correct?

Regards
Nagata.

 

  • Hi Nagata,

    Welcome to E2E!

    Not sure what is keeping the voltage of the TVS diode at 40V after the ESD strike, but I suspect it to be some capacitance associated to that device. The active circuitry in the TVS3300 was designed to discharge the transients of ESD and surge strikes without storing any energy that could keep the voltage high like in the ESD diode case.

    Best regards,

    Andy Robles