This part is a kind of semiconductor called B39202-B4184-U410.

Function of this product has SAW Components Low-Loss Dual Band Filter.

Manufacturers : EPCOS

Image and pinout :

Some of the text within the PDF file :

SAW Components SAW RF Filter TD-SCDMA Series/Type: Ordering code: Date: Version: B4184 B39202-B4184-U410 Dec 06, 2005 1 © EPCOS AG 2005. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained therein without EPCOS’ prior express consent is prohibited. SAW Components Low-Loss Dual Band Filter for Mobile Communication Preliminary Data Application s Low-loss RF filter for mobile telephone B4184 2017.5 MHz TD-SCDMA system s Low amplitude ripple s Usable passband 15 MHz s No matching network required for operation at 50 Ω Features Package size 3.0 x 3.0 x 1.1 mm3 RoHS compliant Approx. weight 37 mg Package for Surface Mount Technology (SMT) s Ni, gold-plated terminals s s s s Pin config [ ... ]

B39202-B4184-U410 PDF Datasheet Download