Ultra-precision thin film chip resistor delivers extremely low TCR

Vishay Intertechnology has introduced a new ultra-precision thin film chip resistor that offers a dramatic improvement in TCR and tolerance over previous-generation devices. Available in five case sizes from 0603 to 2512, the PLTU offers a tight TCR of ± 2ppm/C and tolerance of ± 0.01% for industrial, medical, military, and aerospace applications. With stable film and performance characteristics of ±0.04% at +70C for 10,000 hours, the device released today is optimised for precision applications requiring low noise and high stability over time and temperature. End products will include test and measurement systems, instrumentation, weight scales, and military and avionics guidance systems. The PLTU provides a wide resistance range from 100ohm to 3Mohm, with non-standard values available. The device offers very low noise of <-30dB, a low voltage coefficient of 0.1ppm/V, power dissipation ratings from 150mW to 1W, 75V to 200V maximum working voltages, and an operating temperature range of -55C to +125C. The resistor features a high-purity alumina substrate and corrosion-resistant special passivation method (SPM) enhancement, and it is available with lead (Pb)-free and lead (Pb)-bearing wraparound terminations over a nickel barrier. The device is halogen-free and flame-resistant in accordance with UL94V-0.