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Using resettable fuses in place of single use - what make or break system to create??

Aaron O'Sullivan

Hi all, 

So I'm doing some testing and part of it requires checking what happens when certain pins are open circuit, shorted to gnd and shorted to 12v right ?

historically this was done with single use fuses (2a) but I want to use something resettable

So I've identified one tthat trips on 0.5A and has a withstand lf 100A, but how or what do I use for a make break indicator??

In line led I don't think I'd see quick enough, a potential divider then an arduino to read the analogue voltage maybe?

  1. Struggling with this one
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  • 0

    OK. Now I'm confused...

    I had imagined you had a a fuse in series with a load (device under test), the two in series across a 12V supply, such that when the fuse blows the DUT loses its supply and wanted to know if the fuse was blown. Clearly it is more complex than that.


    So what do you need to do exactly ?
    ps circuit drawn on https://www.digikey.co.uk/schemeit/project/# and exported as png - they have fuses...

    Mike

  • 0 in reply to mapj1

    Thanks for the link Mike, that is a really quick and easy way to draw circuits, not seen it before. I added a few embellishments to yours (latch):-

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  • 0 in reply to mapj1

    Thanks for the link Mike, that is a really quick and easy way to draw circuits, not seen it before. I added a few embellishments to yours (latch):-

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