High voltage (~5kV), low current (~40mA) fuse recommendations for circuit protection

66 1

Report a violation of the law

Reply | New topic

#1 21671381 22 Apr 2014 13:37

DM AERO DM AERO

Anonymous

Post #1
21671381 22 Apr 2014 13:37

Hello,

I'm looking to use a device that would function as a fuse. However, I need a device to withstand high voltage (~5 kV), but to limit the current to ~40 mA. I've found fuses that can limit in the mA range, however the max voltage is in the V range. I've also found high voltage fuses, however they limit in the A range. Does anyone know of anything that would work for my specifications?

Thanks in advance!
ADVERTISEMENT
#2 21671382 22 Apr 2014 14:31

DAVID CUTHBERT DAVID CUTHBERT

Anonymous

Post #2
21671382 22 Apr 2014 14:31

I have not run across any low current 5 kV fuses.

This action could be implemented using a HV relay and an electronic circuit. This would not be an inexpensive solution with HV relays costing over $30. The Coto 5501-12-1 is an example.

http://www.digikey.com/product-detail/en/5501-12-1/306-1010-ND/301645

Using an opto isolator the current sense point can be referenced anywhere in the HV path.
Create an account, log in here. You will receive points by participating in discussions.
Join this discussion.

Install Elektroda application

Didn't find an answer? Ask Artificial Intelligence

*I agree to send the question to OpenAI, Anthropic PBC, Perplexity AI, Inc., Kagi Inc., Google LLC - owners of language models in order to prepare the best response. The companies may monitor and log information entered into the form.

*I agree to publicly display my question and answer. The question and answer will be publicly available to everyone. The process may take a few minutes. Upon completion, you will be redirected to the page with the answer.

Wait...(2min)

Reply | New topic

Report a violation of the law

High voltage (~5kV), low current (~40mA) fuse recommendations for circuit protection

Didn't find an answer? Ask Artificial Intelligence