Hi team,
My customer needs a TVS diode. The normal signal level is 15V and the protection level needs to be 18V.
In my opinion, the Breakdown Voltage of the TVS needs to be higher than 15V so it won't affect the normal signal. I checked TPD4S012 and it seems a proper one. But the clamping voltage of TPD4S012 is only 8V which confuses me a lot. Normally the Vc is higher than Vbr but Why TPD4S012 has such a spec. Is it a proper device for my customer?
By the way, I also want to check with you that how I should select the Clamping voltage range if the protection level needs to be 18V. Does the Vc have to be lower than 18V or it can also be higher than 18V?
Best regards,
Wayne