RLB0913-221K is a radial lead inductor from the RLB0913 series designed for DC/DC converters, power supplies, output chokes, and EMI/RFI filtering applications. The device features a ferrite core with enameled copper winding protected by shrink tubing rated for 125 °C and 600 V, ensuring durability and safety in demanding environments. With an inductance of 220 µH (±10% tolerance), typical DC resistance of 0.453 O, and a saturation current of 0.64 A, this inductor delivers reliable performance in compact form. The component exhibits a self-resonant frequency of 2.7 MHz and operates at a test frequency of 0.796 MHz with a Q factor of 20, making it suitable for high-frequency switching applications. Its fixed lead spacing and RoHS compliance provide standardized integration into modern power management circuits and filtering networks.