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foil resistor

A foil resistor consists of a supporting ceramic body whose surface is coated with a foil alloy of nickel-chromium. The properties of the foil alloy are essentially determined by its resistivity and temperature coefficients

. In the manufacture of foil resistors, precise meandering resistive patterns are etched into a foil by photoetching. The precise resistive value is increased by gradually adding progressively smaller resistive values or reduced by short-circuiting junctions that remove

resistiveloops.

The ceramic-foil junction provides high stability in terms of the temperature dependence and power coefficient of the resistor. Also positive are the characteristic values for long-term stability, freedom from induction, thermoelectric voltage, ESD resistance and low noise. Foil resistors achieve temperature coefficients of +/- 1 ppm/°C in the operating range.

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Englisch: foil resistor
Updated at: 20.09.2020
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