SMP Series surface-mount power resistors, which are designed to minimize thermal resistance, feature a molded SOIC-style package with a metal lead frame. An integral heatsink directly under the resistor element forms a center solderable area on the bottom of the package that is electrically isolated from the resistor. Soldering this central area to the PC board helps to dissipate heat from the device. The non-inductive power resistors are rated for up to 5 W and are available in a 2 resistor x 2 W configuration. The devices can withstand pulses of long duration and are suitable for a variety of applications, such as high-frequency emitter resistors in switching power supplies, high-precision CRT color video amplifiers, high-frequency snubber and pulse handling circuits, pulse generator load resistors, in-rush current protection, and bleeder resistors. Engineers can choose from 2-, 3-, and 5-W versions as well as 1 resistor x 5 W, 1 x 3 W, 1 x 2 W, and 2 x 2 W configurations. Resistance range is 0.1 to 10 K ohm, with tolerances of ۫ and ۯ percent. Typical TCR is 𫏌 ppm/°C at 10 ohms and more. Maximum operating voltage is 50 VDC, with dielectric withstanding voltage at 250 VDC. Operating temperature range is -55° to +155°C. Measuring 11.3 x 11.3 mm, the resistors feature a board-mounted profile of 2.39 mm. Customized versions are available upon request. Pricing starts at 70 cents in quantities of 500.