This part is a kind of semiconductor called B4130.
Function of this product has SAW Components.
Manufacturers : EPCOS
Image and pinout :
Some of the text within the PDF file :
SAW Components Date Sheet B4130 SAW Components Low-Loss Filter for Mobile Communication Data Sheet B4130 897,5 MHz Ceramic Package DCC6C Features Low-loss RF filter for EGSM mobile systems Low amplitude ripple Usable passband 35 MHz No matching network required for operation at 50 Ω q Ceramic Package for Surface Mounted Technology (SMT) q RoHS compatible q q q q Terminals q Ni, gold-plated Pin configuration 2 1 5 6 3,4 Input Input - ground Output Output - ground Case ground Dimensions in mm, approx. weight 37mg Type B4130 Ordering code B39901-B4130-U410 Marking and Package according to C61157-A7-A67 Packing according to F61074-V8168-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage ESD [ ... ]