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Surface-mount foil resistor dividers

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VISHAY Intertechnology, represented by Braemac , has announced the release of the DSM series of ultra-precision, surface-mount resistor dividers, which integrate a matched pair of Bulk Metal foil resistors with absolute values of 5ppm/°C and tracking values of 1ppm/°C or better.

These new foil resistor dividers incorporate a two-resistor, three-terminal resistor network in a compact moulded, epoxy package measuring 4.0mm by 2.7mm.

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 0.05W and 70°C 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 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 0.1W for the entire package at 70°C, or a rating of 0.05W per resistor. The series' performance is enhanced by low thermal EMF of 0.1µV/°C and low current noise of 0.01µV/V(rms) at -40dB.

DSM resistor dividers, which feature silver-coated copper-alloy terminals, weigh just 0.04g and offer resistance to thermal shock, shock, moisture, high-frequency vibration, and extreme temperatures.

They are specified for an operating temperature range of -65°C to +150°C.

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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