MALVERN, PA — Vishay Intertechnology, Inc. (NYSE: VSH) has introduced four thick-film resistor sample kits aimed at shortening component selection and validation for high-power electronics by giving engineers multiple resistance values, automotive-qualified devices, and optional test boards in evaluation-ready packages.
The kits cover Vishay Sfernice D2TO20, D2TO35 and DTO35 resistors, with devices rated at either 20 watts or 35 watts. They use compact TO-252, or DPAK, and TO-263, or D²PAK, surface-mount packages.
The higher power density is intended to reduce the need for parallel resistors or larger through-hole components, potentially reducing circuit-board space in automotive, industrial, and other high-reliability applications.
All resistors included in the kits are AEC-Q200 qualified, allowing designers to use components that have already undergone the automotive qualification process during product development.
Resistance values range from 1 ohm to 47 kilohms across selected E-series values. Vishay is offering multiple values within each kit to reduce the need for engineers to obtain separate samples when evaluating components for a design.
The resistors are supplied on labeled cardboard tape strips, with four devices per strip and resistance values arranged in ascending order. Optional printed circuit board test boards are available for electrical and thermal evaluation.
The devices use a non-inductive construction and provide electrical isolation between the resistor element and metal tab, characteristics intended to support high-frequency operation and electrical safety.
They are also compatible with standard surface-mount manufacturing processes and have demonstrated reflow resistance at temperatures of up to 270 degrees Celsius for 10 seconds.
Vishay is positioning the four kits as development tools that combine component sampling and testing resources to reduce laboratory setup and accelerate design-in for high-power applications.
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