Precision metal-film resistors for low-cost uses

The new RE 0207 and RE 0204 from VTM (UK) are two ranges of precision metal-film resistors in the popular 0207 and 0204 (0.25 and 0.125W) body sizes.

The new RE 0207 and RE 0204 from VTM (UK) are two ranges of precision metal-film resistors in the popular 0207 and 0204 (0.25 and 0.125W) body sizes.

They offer a low-cost alternative to traditional solutions for precision resistor applications.

The RE 0207 is available in a resistance range of 10ohm to 2Mohm, whereas the RE 0204 is available between 10ohm and 1Mohm, both with a standard resistance tolerance of +/-0.1% and a temperature coefficient of resistance (TCR) of +/-15ppm/C, although other tolerances and TCRs are available.

The resistance element in these devices is a precisely controlled thin film of metal alloy deposited on a high quality alumina substrate.

Plated caps are force-fitted before the assembly is trimmed using advanced laser techniques to ensure excellent performance and low electrical noise.

Leads are welded to the end caps prior to the resistor being coated with epoxy, and colour band marking applied.

This gives the advantage of the value being shown, even if the resistor is machine preformed or auto-inserted.

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