Resistors provide TCR values down to ±15 ppm/°C.

Press Release Summary:

Surface-mount Models CSM2512 and CSM3637 feature 4-terminal design for voltage-division and current-sensing applications. All-welded construction is made up of Bulk Metal® resistive element with 60/40 tin/lead-plated copper terminations. Model CSM2512 offers 1 W power rating over resistance range from 3-200 mohm, while Model CSM3637 is rated for 3 W from 2-10 mohm and for 2 W from 10+ mohm up to 200 mohm. Both are specified for temperature range of -55 to +125°C.

Original Press Release:

Vishay's New CSM Ultra-Precision, Surface-Mount, Current-Sensing Resistors Provide TCR Values Down to ±15 ppm/°C and Superior Stability in Compact 2512 and 3637 Sizes

MALVERN, PENNSYLVANIA - May 15, 2003 - Vishay Intertechnology, Inc. (VSH:NYSE) today announced a new series of ultra-precision, surface-mount, current-sensing resistors featuring a four-terminal (Kelvin) design and TCR values as low as ±15 ppm/°C for uniquely high stability and performance in voltage division and precision current-sensing applications.

Intended for switching linear power supplies, power amplifiers, and measurement instrumentation, the compact CSM2512 and CSM3637 resistors from Vishay Foil Resistors feature an all-welded construction made up of a Bulk Metal® resistive element with 60/40 tin/lead-plated copper terminations. Vishay's Bulk Metal technology enables the new resistors to provide superior TCR performance over larger, competing devices, as well as excellent long-term stability and ultra-precision tolerances down to ±0.1%.

The CSM2512 features a 1-W power rating over its entire resistance range from 3 mohm to 200 mohm, while the CSM3637 is rated for 3 W from 2 mohm to 10 mohm and for 2 W from >10 mohm up to 200 mohm. In addition to low ohmic values, the CSM2512 and CSM3637 offer compact dimensions of just 0.25 in. by 0.125 in. [6.35 mm by 3.175 mm] and 0.360 in. by 0.370 in. [9.14 mm by 9.4 mm], respectively, with a height profile of 0.025 in. [0.635 mm].

Both new devices are specified for an operating temperature range of -55°C to +125°C. Depending on the specific requirements of their applications, designers may choose from tolerance options of ±0.1%, ±0.25%, ±0.5%, and ±1.0%.

Available in waffle-pack or tape-and-reel packaging, samples and production quantities of the CSM series resistors are available now. Lead time for production quantities is approximately 12 weeks. Pricing for U.S. delivery only starts at approximately $2.75, depending on tolerance and quantity.

Vishay, a Fortune 1,000 Company listed on the NYSE, is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, optoelectronics, and selected ICs) and passive electronic components (resistors, capacitors, inductors, and transducers). The Company's components can be found in products manufactured in a very broad range of industries worldwide. Vishay is headquartered in Malvern, Pennsylvania, and has plants in sixteen countries employing over 25,000 people. Vishay can be found on the Internet at

Bulk Metal is a registered trademark of Vishay Intertechnology, Inc.

Customer Service
Vishay Intertechnology, Inc.
63 Lincoln Highway
Malvern, PA 19355-2120
Phone: 1 610 407-4800
Fax: 1 610 640-9081

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