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Vishay Intertechnology’s New Surface-Mount PSF Series of High-Precision, High-Stability Metal Film Resistors Features Temperature Coefficients Down to ±5ppm/°C and Tight Tolerances to 0.01% in 2012 and 4527 Case Sizes
MALVERN, PENNSYLVANIA — Dec. 20, 2010 — Vishay Intertechnology, Inc. (VSH: NYSE) today released a new surface-mount series of high-precision, high-stability metal film resistors in the 2012 and 4527 case sizes. For excellent stability across a range of environmental conditions, the PSF resistors feature extremely low temperature coefficients down to ± 5 ppm/°C and tight tolerances to 0.01 %.
Offering circuit designers a surface-mount version of Vishay’s axial-leaded PTF series, the PSF devices are optimized for high-precision applications in precision test and measurement systems and military, aerospace, and industrial equipment and instrumentation.
Measuring 0.200 in. by 0.125 in. [5.08 mm by 3.18 mm] with a 0.096 in. [2.44 mm] profile, the PSF2012 offers a 0.125 W power rating and 200 V working voltage. The PSF4527 measures 0.455 in. by 0.275 in. [11.56 mm by 6.98 mm] with a 0.167 in. [4.24 mm] profile, and features a 0.25 W power rating and 300 V working voltage.
The device offers compliant wraparound terminations that eliminate the risk of solder fillet cracking due to differences in coefficient of thermal expansion (CTE), as well as a rugged molded encapsulation to optimize performance in harsh environments. The resistors operate over a temperature range of −55°C to + 150°C.
Device Specification Table:
|Part #||Power rating||Max. working voltage||Temperature coefficient
|Resistance range (Ω)|
|PSF2012||0.125 W||200 V||5, 10, 15, 25||0.01, 0.02, 0.05, 0.1, 0.25, 0.5, 1||15 to 100 k|
|PSF4527||0.25 W||300 V||5, 10, 15, 25||0.01, 0.02, 0.05, 0.1, 0.25, 0.5, 1||15 to 500 k|
Samples and production quantities of the PSF resistors are available now, with lead times of 15 to 18 weeks.
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.
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