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Thin-film chip resistors tip ±25ppm/°C TCR

Posted: 01 Feb 2011     Print Version  Bookmark and Share

Keywords:thin film  chip  resistor  ceramic 

Vishay Intertechnology Inc. unveils a series of precision high-power (PHP) thin-film chip resistors designed for high-precision medical imaging and for industrial, telecommunications, and test and measurement instrumentation and equipment.

The devices feature absolute TCR of 25ppm/°C, tolerances down to 0.1 per cent, and high power ratings from 1W to 2.5W over a wide temperature range of—55°C to +125°C. They also offer film and performance characteristics of 1,000ppm at +70°C for 2,000 hours.

The PHP series chip resistors are made with a high-purity ceramic substrate and designed with enlarged backside terminations to reduce the thermal resistance between the topside resistor layer and the solder joint on the end user's circuit board.

The series of resistors come in the 1206 and 2512 case sizes, and offer a resistance range from 10Ω to 30KΩ, with non-standard values available. They feature 2x the power rating over traditional thin-film chip resistors in the same case sizes, low noise of less than—30dB, low voltage coefficients of 0.1ppm/V, and voltage ratings from 100V to 200V. Available with Pb-free or lead terminations, the devices are RoHS-compliant and flame-resistant in accordance with UL 94 V-0.

Samples and production quantities of the PHP series will be available in Q1 2011, with lead times of 10 to 12 weeks for standard orders.

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