Geyer Electronic 12.95103 is a fully shielded, rectangular, through-hole, power inductor. It is designed for a wide range of applications, including power supplies, DC-DC converters, DC-AC inverters, magnetic amplifiers, and various filters. It is designed to have a low DCR and minimal winding losses, meaning it offers high efficiency. This inductor also has a high inductance value and is available in 3 different sizes. The construction is made to be robust and reliable with a fully shielded core and casing.