The PWR263S-35-R500J is a 35 W power resistor manufactured by Bourns using thick film on alumina ceramic technology in a TO263 D2PAK surface-mount package. This specific variant features a resistance value of 0.5 O with ±5% tolerance and is designed for current measurement, snubber, bleeder, and discharge circuits. The resistor exhibits low inductance (0.1 µH maximum), a thermal resistance of 3.7 °C/W, and operates across a temperature range of -55 °C to 155 °C with a temperature coefficient of resistance of ±100 PPM/°C. It is RoHS and AEC-Q200 compliant, with a maximum operating voltage of 250 V and dielectric strength of 2 kV AC, making it suitable for demanding industrial and automotive applications requiring high reliability and thermal performance.