A friend of mine needs to replace a resistor in his printer (not audio, sorry) that's listed as a "fuseable" resistor. In the fuse module there are 2 resistors, a 100K maybe 1/4 watt and this fuseable 56 ohm thing that looks to be a standard metal film part:
I can't find anything in Mouser or DigiKey that references fuseable resistors, so I'm wondering what's special about it and what's the best replacement item. He says the part is open circuit, so obviously it does act as a "fuse".
Thing is, I've seen metal film resistors catch fire when overloaded so I'm really at a loss here.
An externally hosted image should be here but it was not working when we last tested it.
I can't find anything in Mouser or DigiKey that references fuseable resistors, so I'm wondering what's special about it and what's the best replacement item. He says the part is open circuit, so obviously it does act as a "fuse".
Thing is, I've seen metal film resistors catch fire when overloaded so I'm really at a loss here.
Hi,
I'd say its a part guaranteed to go open circuit if overloaded, and
guaranteed to able to interrupt certain voltages and currents.
I'd guess its possible melting resistors could go lower in value
and short, rather than go open, but I've never seen it, all
fried resistors I've come across have been open circuit.
Perhaps an extra section that melts at a given power.
rgds, sreten.
I'd say its a part guaranteed to go open circuit if overloaded, and
guaranteed to able to interrupt certain voltages and currents.
I'd guess its possible melting resistors could go lower in value
and short, rather than go open, but I've never seen it, all
fried resistors I've come across have been open circuit.
Perhaps an extra section that melts at a given power.
rgds, sreten.
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