A new series of thick film, surface-mount chip resistors from Vishay Intertechnology features four-terminal Kelvin connections an power ratings of 0.33W in a compact 0306 case size.

The Vishay Dale RCWK0306 series resistors are designed to save space and reduce component counts in telecommunications, computer, industrial and consumer applications.

The devices can be used instead of larger high power components or multiple lower power devices, reducing board space requirements and placement costs while enabling smaller and lighter end products. In addition, RCWK0306 series resistors provide higher reliability than larger thick film devices by reducing the coefficient of thermal expansion (CTE) mismatch with the PCB, lowering solder joint stress.

The resistors' four-terminal Kelvin connection enables greater measurement accuracy with low resistance values from 0.01Ω to 0.1Ω and tolerance of 1%. RoHS-compliant and halogen-free, the devices feature a metal glaze thick film on high quality ceramic. They are optimised as current sensing resistors in DC/DC converters, voltage regulation modules and inverters in cell phones, computers, air conditioners and heat pumps.

Samples and production quantities of the RCWK0306 are available now, with lead times of six to eight weeks for large orders.