PWR263S-35-4R70J is a 35 W TO263 D²PAK style power resistor manufactured by Bourns using thick film on alumina ceramic technology. This specific unit features a resistance value of 4.7 O with ±5% tolerance and is designed for current measurement, snubber, bleeder, and discharge circuits. The resistor exhibits a maximum inductance of 0.1 µH, 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 electrically isolated from the backplate, features low inductance, and is compatible with lead-free solder reflow temperatures. Common applications include power supplies, motor drives, test and measurement equipment, and rectifier circuits where reliable high-power dissipation and thermal management are essential.