TT electronics has introduced solderless chip resistors which will operate at temperatures up to 200°C.
An application for the glueable resistors is in hybrid microcircuits or medical MRI scanners where non-magnetic components must be used.
Fixing components with conductive adhesive rather than solder is preferred for assembling some types of hybrid microcircuits, non-magnetic electronics and equipment designed to operate at temperatures capable of melting ordinary solder.
These include down-hole drilling equipment, as well as military, aerospace and automotive assemblies.
TT electronics said its GCR series resistors are compatible with most approved adhesives, and allow a mechanically strong bond with low electrical resistance.
The glueable chip resistors are available in several variants, providing a choice of industry-standard EIA chip sizes down to 0805 and E24/E96 resistance values from 1 Ohm to 10 Ohms.
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 and applications.
Designers can choose from devices with 1% or 5% tolerance, to fulfil a variety of application requirements.
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