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About Dave Nyce
Expertise
I have been an electronics engineer for 25 years. I can answer questions on analog and digital circuits and my specialty is sensors.

Experience
I am the inventor on 23 US patents, and also some foreign ones. Developed sensors for over 25 years. Licensed private pilot (airplane and rotorcraft), have HAM radio license. I'm not an expert in computer networking.
 
   

You are here:  Experts > Computing/Technology > Job Searching: Technical > Electrical Engineering > Ceramic Fuse

Topic: Electrical Engineering



Expert: Dave Nyce
Date: 9/11/2003
Subject: Ceramic Fuse

Question
How do I convert fractional Amp ranges to decimal Amperages and not risk the integrity of the circuit, i.e., 1/8 amp ceramic fuse can be substituted by __ ?

Answer
I'm not sure that I understand your question. For a 1/8 amp fuse, you can use one rated for .125 amp. If there is only one available for .1 or .15 amps, then you can use the .15 amp fuse. (That is: next one higher, if it is not too much higher.) If you can not find one that is close, then you can not safely substitute the other amp rating. Make sure that the delay type is the same. (AGC, fast acting, slo blow, etc.)

If you use a fuse rating that is lower than the original, the fuse may blow when there is not a problem. If you use a fuse rating that is more than 20% higher than the original, it may not protect adequately in the case of a fault.

Hope this helps!

Dave

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