SDR0403-221KL is a surface-mount power inductor from the SDR0403 series designed for input/output filtering in DC/DC converters and power supplies. It features a 220 µH inductance at 1 kHz with ±10% tolerance, a ferrite DR core with enameled copper wire, and a compact low-profile design of only 3.2 mm maximum height. The inductor exhibits a maximum DC resistance of 4.40 O, a rated RMS current of 0.22 A, and a saturation current of 0.33 A, with a self-resonant frequency of 4 MHz. This component is ideal for portable communications equipment, camcorders, and LCD TV power supplies, offering reliable performance with RoHS compliance and a temperature rise of 40°C maximum at rated current.