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Vishay’s Ultra-Precision Thin Film Chip Resistor Delivers Extremely Low TCR of ± 2 ppm/°C

30510565046_4a14654068_bVishay Intertechnology, Inc. on Oct. 31, 2016, 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 Vishay Dale Thin Film PLTU offers a tight TCR of ± 2 ppm/°C and tolerance of ± 0.01 % for industrial, medical, military, and aerospace applications.

With stable film and performance characteristics of ± 0.04 % at +70 °C for 10,000 hours, the device released is optimized 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 100 Ω to 3 MΩ, with non-standard values available. The device offers very low noise of < -30 dB, a low voltage coefficient of 0.1 ppm/V, power dissipation ratings from 150 mW to 1 W, 75 V to 200 V maximum working voltages, and an operating temperature range of -55 °C to +125 °C.

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 UL 94 V-0.

Device Specification Table:

Case size

Power rating (mW)

Working voltage (V)

Resistance range (Ω)

0603

150

75

100 to 130 k

0805

250

100

100 to 260 k

1206

400

200

100 to 775 k

2010

800

200

150 to 2 M

2512

1000

200

200 to 3 M

Samples and production quantities of the PLTU resistor are available now, with lead times of eight to 10 weeks.

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