Vishay’s MCW 0406 AT professional and precision resistors are designed to deliver stable performance in harsh and high-temperature applications up to 175 °C, with high power ratings of 300 mW at an ambient temperature of 85 °C. The excellent high-temperature performance includes a robust ability to handle thermal cycling and biased humidity, handling up to 2500 cycles of thermal cycling over a span of - 40 °C to 125 °C. High humidity robustness is achieved by a unique lacquer system and this series will be qualified according to AEC-Q200. The precision series offers low TCRs down to ±15 ppm/°C and tight tolerances of ± 0.1 %. The MCW 0406 AT offers resistance range from 100 kΩ down to 47 Ω.