The 28R1127-200 from Laird falls under the ferrite cable cores category. This component is defined by a type of Flat, a design of Solid, a impedance @ frequency of 191Ohm @ 100MHz, a material of 28, a inner dimension of 0.925" W x 0.067" H (23.50mm x 1.70mm) and a outer dimension of 1.125" W x 0.303" H (28.58mm x 7.70mm). This part has a typical lead time of 84 Days from factory and ships with a full manufacturer datasheet available for download. You can source 28R1127-200 through Simplytronix, with fast shipping and verified authenticity.