This part is a kind of semiconductor called 1008CS-xxxxxBx.

Function of this product has Chip Inductors.

Manufacturers : Coilcraft

Image and pinout :

Some of the text within the PDF file :

Document 101-1 ChipInductors –1008CSSeries (2520) These chip inductors are designed for the needs of today’s high frequency designer. Their ceramic construction delivers the highest possible SRFs and Q values. The non-magnetic coilform also ensures the utmost in thermal stability, Part Number 1008CS-100X _ B _ 1008CS-120X _ B _ 1008CS-150X _ B _ 1008CS-180X _ B _ 1008CS-220X _ B _ 1008CS-270X _ B _ 1008CS-330X _ B _ 1008CS-390X _ B _ 1008CS-470X _ B _ 1008CS-560X _ B _ 1008CS-680X _ B _ 1008CS-820X _ B _ 1008CS-101X _ B _ 1008CS-121X _ B _ 1008CS-151X _ B _ 1008CS-181X _ B _ 1008CS-221X _ B _ 1008CS-271X _ B _ 1008CS-331X _ B _ 1008CS-391X _ B _ 1008CS-471X _ B _ 1008CS-561X _ B _ 1008CS-621X _ B _ 1008CS-681X _ B _ 1008CS-751X _ B _ 1008CS-821X _ B _ 1008CS-911X _ [ ... ]

1008CS-xxxxxBx PDF Datasheet Download