The SRR1280-221K is a shielded surface-mount power inductor from the SRR1280 series designed for input/output filtering in DC/DC converters and power supply applications. It features an inductance of 220 µH with ±10% tolerance, a DC resistance of 400 mO, and an RMS current rating of 1.60 A, with a saturation current of 1.77 A. The inductor operates over a temperature range of -40°C to +125°C and exhibits a self-resonant frequency of 3.4 kHz with a quality factor of 24 at 0.796 MHz. This component is particularly suited for portable communication equipment, camcorders, and LCD television power supplies, where compact shielded inductors are required to minimize electromagnetic interference while maintaining high efficiency in switching power applications.