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News

Vishay's new DSM ultra-precision, surface-mount foil resistor dividers provide stability

Vishay Electronic : 11 July, 2003  (New Product)
Vishay Intertechnology, Inc. today announced the release of the DSM series of ultra-precision, surface-mount resistor dividers, which integrate a matched pair of Bulk Metal Foil resistors featuring excellent stability and industry-leading TCR performance with absolute values of 5 ppm/
Vishay Intertechnology, Inc. today announced the release of the DSM series of ultra-precision, surface-mount resistor dividers, which integrate a matched pair of Bulk Metal Foil resistors featuring excellent stability and industry-leading TCR performance with absolute values of 5 ppm/C and tracking values of 1 ppm/C or better.

These new Vishay Foil Resistors dividers incorporate a two-resistor, three-terminal resistor network in a compact molded, epoxy package measuring 0.16 in. by 0.106 in. [4.0 mm by 2.7 mm]. The electrical performance of this integrated construction provides superior performance and improved use of space compared with discrete and matched-pair resistors. High stability of 0.01% at 0.05 W and 70C over 2,000 hours also sets these dividers apart from competing devices.

The DSM series is intended for precision instrument amplifier applications, differential gain control, and precision voltage division applications in automated test equipment and measurement instrumentation, as well as in precision weigh scales and voltage dividers.

Resistance values of 100 Ω to 10 kΩ are available in a broad range of resistance ratios from 1:1 to 100:1, with a tight resistance-ratio tolerance as low as 0.01%. Absolute tolerance is 0.02%. The DSM divider features a power rating of 0.1 W for the entire package at 70C, or a rating of 0.05 W per resistor. The series' performance is enhanced by low thermal EMF of 0.1 V/C and low current noise of 0.01 V/V(RMS) at -40dB.

DSM resistor dividers, which feature silver-coated copper-alloy terminals, weigh just 0.04 g and offer resistance to thermal shock, shock, moisture, high-frequency vibration, and extreme temperatures. They are specified for an operating temperature range of -65C to +150C.

Available in bulk-pack or tape-and-reel packaging, samples and production quantities of the DSM series resistors are available now.
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