Surge and ESD protector Selection

[jay1691]

Hello,

I have to choose surge and ESD protector for my device. It falls in class 4 that is 8KV contact/ 15KV air for surge protection and class 4 for 4KV protection in Surge.

Circuit Detail :
1) input signal is 110V DC for monitoring

As it is coming through field i have to put ESD/Surge protector on that line.

Queries :
1) Can i protect circuit with any single diode for surge and ESD both ?
2) how to select TVS for that ?

 

[D.A.(Tony)Stewart]

**broken link removed**

It depends on impedance, voltage, speed of signals, for choice of MOV / TVS for Joules, pF and V rating.