- Tech know how online

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


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.

Informationen zum Artikel
Englisch: foil resistor
Updated at: 20.09.2020
#Words: 126
Translations: DE