SDR1307-121KL is an SMD power inductor from Bourns' SDR1307 series, featuring a 120 µH inductance at 100 kHz with ±10% tolerance and a quality factor (Q) of 20 at 0.796 MHz test frequency. The inductor has a self-resonant frequency (SRF) minimum of 5.8 MHz, a maximum DC resistance (RDC) of 210 mO, and supports an RMS current rating of 1.8 A with a maximum saturation current of 2.8 A typical. The component is housed in a compact SMD package with a maximum diameter of 13.0 mm and height of 5.0 mm, featuring a temperature rise of 40°C maximum at rated current. This inductor is ideal for input/output filtering in DC/DC converters and power supplies for portable communication equipment, camcorders, LCD TVs, and CD players, offering RoHS compliance and reliable performance in space-constrained applications.