Ultra-high power thin film chip resistors for industrial applications

Industrial electronic controls and instrumentation pose challenges to designers. Industrial applications require high power handling and stability in harsh environmental environments but also may require precision tolerances and TCRs, a difficult combination for film chip resistors.

It is not easy to achieve high power ratings with thin film resistor technology normally used for precision requirements. Stackpole Electronics’ RNCU1206 supplies tolerances as low as 0.1% and TCRs as low as 10ppm, together with a 1W power. Most thin film 1206 size resistors are limited to 0.33W or 0.5W.

The RNCU is AEC-Q200 compliant with expected resistance shifts of less than 0.25% for many industry standard performance tests for stability and reliability. It also exhibits excellent anti-sulphur characteristics and meets the requirements of ASTM-B809.

Pricing for the RNCU depends on tolerance and TCR.