Electronics > Beginners
How do I implement ESD protection for a voltage reference?
Andreas:
Hello,
it all depends on where your reference has to go and withstand which levels.
At home you can use a ESD wrist strap and be fine.
But even there I use a 100nF WIMA at the output buffer (mainly against EMI but it also helps against ESD).
If your reference has to travel you may have to use further measures.
(at least the first travel standard of cellularmitosis seems to have a damage perhaps by ESD).
For my travel standard I use a PI-Filter to further reduce influence.
https://www.eevblog.com/forum/metrology/ad587lw-10v-precision-travel-standard/msg1449492/#msg1449492
If your device also has to withstand mis-use then have a look at the Fluke 732 cirquit diagram.
(additional gas discharge tube + transient zener).
with best regards
Andreas
Brak:
I intend to carry it somewhere to get someone to measure it accurately
I remembered what a pi filter was, so I recognized that. My original question was about using an inductor for protection.
WIMA? Would that be the metallized or foil/film, polyester or polypropylene, or does it matter?
Brak
Andreas:
The exact type does not matter: but it should be a low inductance capacitor.
I use type MKS2
with best regards
Andreas
T3sl4co1l:
Can't beat an SMT ceramic chip, it has no lead length.
Tim
iMo:
Are there any rules how to set the capacity of the Wima cap for the ESD protection?
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