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Metal film resistor wattage

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05-03-2017, 11:51 PM

ppppenguin ppppenguin is offline

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Join Date: Oct 2009

Location: London, UK

Posts: 466

The problem with metal film resistors is that the actual resistive element is a relatively thin spiral of material. This can burn out relatively easily from surge currents. Oxide and composition resistors are basically a mass of material which is less prone to burning out this way.

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