Chip Resistors
TT electronics PLC (Surrey, UK) has introduced chip resistors that are optimized for use with conductive adhesives and suitable for applications like medical MRI scanners where non-magnetic components must be used. The GCR series glueable chip resistors are available in several variants, with EIA chip sizes down to 0805 and E24/E96 resistance values from 1Ω to 10Ω. Power ratings are from 0.125W in the 0805 size up to 1W in the 2512 package. Planar and wraparound terminations are available, featuring a choice of metallurgies including polymer-silver or gold with a nickel barrier for use in various environments. Designers can choose from devices with 1% or 5% tolerance. The temperature coefficient of 100 ppm/°C (200 ppm/°C for values below 10Ω) ensures stability throughout the specified operating temperature range of -55°C to 200°C.

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Medical Design Briefs Magazine

This article first appeared in the September, 2011 issue of Medical Design Briefs Magazine.

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