Precision automotive thin-film chip resistors in 0402 and 1206 case sizes

21-01-2015 | Vishay | Passives

Latest from Vishay is an extended PATT precision automotive thin film chip resistor family with devices in 0402 and 1206 case sizes. The devices are available with gold-plated terminals for conventional solder assembly and conductive glueable board-mount technologies. Providing an 85C extension in operating temperature range over most conventional chip resistors, the thin film PATT features high-temperature operation to +155C with 100% power dissipation, derated linearly to +250C. The AEC-Q200-qualified device offers a low absolute TCR down to ± 25ppm/C and laser-trimmed tolerances down to ±0.1%. The part features an intrinsic moisture-protected resistor element built on tantalum nitride technology. With a load-life stability of <0.2% at +155C and full rated power dissipation for 1,000 hours, the Vishay Dale Thin Film resistor released today is optimized for the low-noise analog signal processing required to compensate for low offset and temperature drift in high-temperature environments such as gain setting in ultra-low noise and precision analog digital processors and high-gain audio amplifiers; under-the-hood automotive applications; high-precision oil and gas exploration; industrial in-line testers; metering; and telecommunications and industrial equipment. Offered in 0402, 0603, 0805, and 1206 case sizes, the PATT provides a wide resistance range from 1ohm to 1Mohn. The device features very low noise of <-30dB, a low voltage coefficient of 0.1 ppm/V, power dissipation ratings from 50mW to 400mW, and 75V to 200V maximum working voltages. The resistor features a high-purity ceramic substrate, 0.254µm gold terminations over nickel barrier for high-temperature HMP soldering or conductive gluing bonding, and withstands ESD to 2 kV per AEC-Q200 Class 1C. The device is moisture-resistant according to MIL-STD-202, method 106; flame-resistant according to AEC-Q200-001; sulphur-resistant per ASTM B809-95 humid vapour test; and 100 % visually inspected per MIL-PRF-55342, says the company.

By Craig Dyball