PWR163S-25-50R0F is a DPAK-style surface-mount power resistor rated at 25 W with a resistance value of 50 O and ±5% tolerance. This component features very low inductance (0.1 µH maximum) and excellent pulse characteristics, making it ideal for high-frequency applications such as amplifiers, wireless base stations, and current-limiting circuits. The resistor operates over a temperature range of -55°C to 155°C with a thermal resistance of 5.2°C/W and a temperature coefficient of ±100 PPM/°C. It is RoHS compliant, AEC-Q200 qualified, and features electrical isolation from the backplate. Common applications include power supplies, motor drives, test and measurement equipment, and rectifier circuits where high power dissipation and reliability are required.