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build or substitute for 630mA rated time delay fuse ?

is there a way to build temporary fuse like substitute in the case of blown fuse and no local source to get them ?

what is blown are Time delay 630mA 250v fuse(s)

and i want the safety of a fusible link but without hassle of blowing lots of fuses

would a simple current limiting resistor appropriately chosen work ? or some simple circuit that detects current and adjusts resistance in place of the fuse ? thermistor , varistor etc .....

well, those are ideas that run through the couple of electronics neurons i have :)

lots of people here know better than i ....

help and ideas appreciated, robb

Reply to
robb
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There is no better way in this case then to replace the fuse with the type intended for that device.

You didn't say what the device is, so perhaps you could "get by" with a 1 A. SB (slow blow) which are easy to find.

Tom

Reply to
Tom Biasi

If you're just testing, use an incandescent lamp.. one that is rated for the voltage and aprox current of the circuit. if there is a short, the lamp will absorb it and glow to normal brightness to indicate it. current will be greatly reduced since the element in the lamp increases resistance as it heats up.

--
"I\'m never wrong, once i thought i was, but was mistaken"
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5
Reply to
Jamie

My emergency fuse? take a bit of stranded wire, get on thin wire out, and use it as fuse.

Reply to
Sjouke Burry

circuit.

normal

since the

so Jamie, you are talking about using the formula like the P= IV where i pick a Watts nd Volt rating for a given bulb such that gives me the anticipated Current

think i'll try/test that on another 5v regulator.

thanks for help, robb

Reply to
robb

"robb"

** Buy a 630mA circuit breaker - fool.

Resets with a push button.

...... Phil

Reply to
Phil Allison

Thanks for advice Phil, robb

Reply to
robb

Looking for shorts don't help when it keeps reseting....

--
"I\'m never wrong, once i thought i was, but was mistaken"
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5
Reply to
Jamie

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