I am wondering what is the criteria for selecting diodes TVS, for example my circuit runs at 36V and I want protect my circuit from spikes
But I am little confused about the Breakdown Voltage (VBR) if it select a value just a little above 36V and Reverse Stand-off Voltage (VRWM) at 36V.
My confusion in regarding to the Clamping voltage (Vc) because I see some graphs and the clamping is actually at Clamping voltage (sounds logic), but why is used the VBR widely instead of Vc?
for example: :http://www.protekdevices.com/xyz/documents/kb/tech/ta1004.pdf VBR = 6V, but it is clamping at 10V+
the actual max voltage input possible for my circuit is 38V, but the parts for 36V actually says clamping voltage 56V+ :/
for example this :https://www.digikey.com/product-detail/en/littelfuse-inc/SMAJ36A/SMAJ36ALFTR-ND/762298
Voltage - Reverse Standoff (Typ) =36V
Voltage - Breakdown (Min) =40V
Voltage - Clamping (Max) @ Ipp =58.1V
my power requeriments are in wide range from 12V to 36V max:
36V/900mA Max or 12V/2.6A