The FC4L64R050FER is a four-terminal, Kelvin-type current sense resistor from the FC4L series, designed for precise current measurement. It features a metal foil construction with a Ni-Cu-Mn resistive element, providing a resistance of 50 mΩ with a ±1% tolerance and a power rating of 2 watts. The component exhibits a stable Temperature Coefficient of Resistance (TCR) of ±50 ppm/°C and operates over a wide temperature range from -55°C to +155°C. Its 4-terminal design, with separate electrodes for current management and voltage sensing, makes it ideal for applications requiring high-precision current monitoring and control.