Resistance range extended on automotive chip resistors

19th November 2014
Source: Vishay
Posted By : Mick Elliott
Resistance range extended on automotive chip resistors

Vishay Intertechnology has enhanced its PAT series of AEC-Q200-qualified precision automotive thin film chip resistors with an extended resistance range from 2.5 Ω to 3 MΩ. Designed to meet automotive industry requirements for temperature and humidity while offering consistent repeatability and stable performance, the Vishay Dale Thin Film devices feature a low standard TCR of ± 25 ppm/°C and laser-trimmed tolerances down to ± 0.1 %. 

Featuring a tantalum nitride resistor film on a high-purity alumina substrate, the PAT resistors offer load-life stability of < 0.05 % at +70 °C for 1,000 hours and an ESD rating of 2 kV. Ideal for the low-noise single-signal processing required to compensate for low offset and temperature drift in high-temperature applications, the devices are optimised for hybrid / electronic controls, energy management, measurement, sensor scales, and stable fixed resistor applications in automotive electronics. 

Offered with wraparound terminations in eight case sizes from 0402 to 2512, the PAT series features very low noise of < -35 dB and low voltage coefficients of < 0.1 ppm/V. Power ratings for the devices range from 50 mW to 1 W, and voltage ratings are from 75 V to 200 V over an operating temperature range of –55 °C to +155 °C. 

The PAT devices are resistant to moisture at +85 °C, 85 % relative humidity, and 10 % rated power per MIL-STD-202, method 202; flame-resistant in accordance to UL 94 V-0; and undergo a 100 % visual inspection per MIL-PRF-55342. Featuring lead (Pb)-free terminations, the devices are RoHS-compliant, halogen-free, and Vishay GREEN. 



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