Vishay Intertechnology has developed a trio of high-precision CECC-qualified Bulk Metal Foil resistors for demanding avionics, military, and space applications. They feature a low temperature coefficient of resistance (TCR) of typically within 4 ppm/°C typical from - 55 to + 155°C, with tolerances from 0.02 percent. The load-life stability for these resistors is within 0.010 percent (50 ppm) at + 70°C for 2000 h at rated power.
Models RS92N, RS92NA, and RS92AN resistors are qualified to CECC, the standard for avionics, military, and space applications requiring long-term stability and high reliability. The resistors feature a power rating of 0.5 W at + 70°C and 0.25 W at + 125°C. Each device measures 2.5 x 7.5 mm, with a height of 8.0 mm, and typically weighs 0.6 g. The RS92NA offers 3.81-mm lead spacing, while the RS92N and AN offer 5.08-mm lead spacing.