Metal-film Resistors

A metal-film resistor is a resistor in which a thin film of metal is sprayed onto a ceramic substrate and then cut into a spiral body.

The length, thickness, and width of the metal spiral determine the exact resistance value.

Metal-film resistors offer more precise resistance values than the other type of film resistors, which are carbon-film resistors. Like carbon-film resistors, metal-film resistors are affected very little by temperature changes and aging. They also generate very little noise internally.

In overall performance, metal-film resistors are the best type, followed by carbon-film resistors next, and lastly by carbon-composition resistors.

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