PM1812-120J-RC is a surface-mount chip inductor from the PM1812 series designed for use in DC/DC converters, power supplies, and general applications. The device features a 12 µH inductance with ±5% tolerance, a ferrite core with copper wire coil, and an epoxy resin enclosure with tin terminals. It operates over a temperature range of -40°C to +125°C with a maximum temperature rise of 20°C, and exhibits a self-resonant frequency of 18 MHz minimum and a DC resistance of 2 O maximum. The inductor is rated for a maximum DC current of 235 mA and is tested at 2.52 MHz with a minimum quality factor of 50. Its compact 1812 package (3.2 mm × 1.7 mm) with accurate dimensions enables reliable automatic surface mounting, making it ideal for high-density PCB designs requiring stable inductance performance in switching power applications.