In Reply to: RE: "a 1 watt film resistor should do quite well" posted by 1973shovel on July 22, 2012 at 12:29:16:
Many years ago in my day job, we considered adding a 10 ohm, 1/4-watt AB carbon-composition resistor in the power feed to each of roughly 100 solid-state circuit boards running off a 15 V power supply to isolate any board that had failed shorted. Before we installed them, we did a simple test with a current-limited lab supply applying a few watts of power to the resistor. They smoked and stunk up the lab, but refused to open circuit. We used "picofuses" in roughly the same package size for the final array. Note that such fuses have a very high positive temperature co-efficient of resistance, to ensure reliable blowing on high current.
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Follow Ups
- RE: "a 1 watt film resistor should do quite well" - TimFox 12:30:37 07/26/12 (0)