The NTJ04-040L from Yageo is a Negative Temperature Coefficient Thermistor that is ideal for monitors, SPS, fax, adapter, telecom, communications equipment, and power supply applications. It has a current rating of 4 A and a resistance of 40 ohms. This thermistor has a power rating of 4 W. It has been designed to effectively retrain current surges while maintaining low power loss under stable state conditions. It exhibits stable thermal and electrical characteristics and has undergone UL/TUV safety certification procedures. This RoHS-compliant NTC thermistor offers a wide current control range and quickly responds under over-current conditions. It is available in a through-hole package that measures 15 x 42 mm.