Designed to minimize transfer of PCB stresses caused by differential thermal coefficients of expansion, Flex Series of Bulk Metal® Foil COTS Resistors provide load-life stability of ±0.005% (50 ppm) after 2,000 hr at 70°C and low TCR of ±0.05 ppm/°C nominal (0 to +60°C) and ±0.2 ppm/°C nominal (-55 to +125°C). Surface mount devices offer power ratings to 600 mW at +70°C and resistance range from 1 Ω to 80 kΩ with tight resistance tolerance to ±0.01%.