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Vishay Intertechnology Introduces High-Precision Thin Film SMD Wraparound Chip Resistor Arrays With High Operating Temperatures to + 215 °C, Load-Life Stability of 0.7 %, and Tight TCR of 10 ppm/°C
MALVERN, Pa. — August 30, 2012 — Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new series of high-precision thin film SMD wraparound chip resistor arrays optimized for high-temperature down-hole and aeronautics applications. The new PRAHT four-resistor networks feature an operating temperature range from − 55 °C to + 215 °C with a maximum storage temperature up to + 230 °C, an industry-first for any resistor array built on thin film technology.
The Vishay Sfernice devices introduced today are ideal for oil level and pressure sensors, and temperature measurement in down-hole extraction tools and aeronautics engine and braking systems. The networks combine their high-temperature performance with load-life stability of 0.7 % after 2,000 hours at rated power and + 215 °C, as well as tight TCR of 10 ppm/°C, TCR tracking to 2 ppm/°C, and a ratio tolerance down to 0.05 %.
Available with 1 mm, 1.35 mm, or 1.82 mm pitches, the PRAHT series features resistance values from 10 Ω to 2 MΩ and power ratings from 10 mW to 20 mW per resistor. The devices offer very low noise < - 35 dB and voltage coefficient < 0.01 ppm/V. The RoHS-compliant networks are available with gold terminations for temperatures up to + 230 °C or SnAg terminations for temperatures to + 200 °C.
Device Specification Table:
|Part number||Pitch||Resistance range||Power rating (per resistor)|
|PRAHT 100||1 mm||10 Ω to 250 kΩ||10 mW|
|PRAHT 135||1.35 mm||10 Ω to 500 kΩ||12.5 mW|
|PRAHT 182||1.82 mm||10 Ω to 2 MΩ||20 mW|
Samples and production quantities of Vishay’s new PRAHT resistor networks are available now, with lead times of 10 weeks for larger orders.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers
of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors,
and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial,
computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product
innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can
be found on the Internet at www.vishay.com.