The EPCOS (TDK) B66397G0000X197 is a ferrite core that is designed to provide reliable performance in various electronic devices. It is part of the ETD59/31/22 series and has a balance of supply and demand status, making it a good choice for many applications. The ferrite core has a length of 2.354" (59.80mm), a height of 1.228" (31.20mm), and a width of 0.870" (22.10mm). It has a package type of box and a core type of ETD. The ferrite core has a manufacturer part number of B66397G0000X197 and a Win Source part number of 1047784-B66397G0000X197.