Re: Selection of resistor& Capacitor in ESD protection circuit - IEC61000-4-2 standar
What is the bandwidth of your input signal. Keep in mind this is also a low pass filter. High freq signal will be filtered out.
You can use smd805 resistors for that purpose i think, since duration is very short. (after applying ESD sparks many times, resistor values might increase, i have experienced some cases like that, on the other hand for smd402 components are not proper, ESD spark may bypass the resistor since conducting terminals are too close).
By the way you can consider ferrite beads instead of resistors.
Good luck