PM1812-220J-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 22 µH inductance with ±5% tolerance, a ferrite core with copper wire coil, and an epoxy resin enclosure with tin-plated terminals. It operates over a temperature range of -40°C to +125°C with a maximum temperature rise of 20°C and demonstrates high resistance to heat, humidity, mechanical shock, and pressure. The inductor exhibits a self-resonant frequency of 13 MHz minimum, a DC resistance of 3.2 ohms maximum, and a maximum DC current rating of 180 mA, making it suitable for compact power management circuits requiring reliable energy storage and filtering in demanding environments.