FW20A10R0JA is a 2W fusible power resistor designed to fuse safely under abnormal conditions such as sudden voltage surges or circuit malfunctions when 120V or 240V is applied. The resistor features a resistance value of 10 ohms with E24 tolerance of ±5%, a temperature coefficient of ±200 PPM/°C, and operates reliably over a temperature range of -55°C to +155°C. It is constructed with a wirewound design around a ceramic core with tinned copper leads and insulated resin housing, meeting UL 1412 recognition and RoHS compliance standards. This component is commonly used in white goods, inverters, lighting systems, and metering applications where overcurrent or overvoltage protection is required.