This part is a kind of semiconductor called B7653.

Function of this product has SAW Components.

Manufacturers : EPCOS

Image and pinout :

Some of the text within the PDF file :

SAW Components Data Sheet B7653 SAW Components Low-Loss Dual Band Filter for Mobile Communication Data Sheet B7653 881,5 & 1960,0 MHz Chip Sized Saw Package QCS10C Features AMPS and PCS bands, receive path s Usable passband: 0,1 0,1 0,8 1 2 3 4 10 5 s Low-loss 2-in-1 RF filter for mobile telephone s s s 1,8 0,4 0,68 0,5 side view top view s Filter 1 (AMPS): 25 MHz Filter 2 (PCS): 60 MHz Unbalanced to balanced operation for both filters Impedance transformation from 50 Ω to 200 Ω for AMPS filter Suitable for GPRS class 1 to 12 Package for Surface Mounted Technology (SMT) bottom view 0,5 9 8 7 6 3,0 Terminals q Ni, gold-plated Dimensions in mm, approx. weight 0,015g 9 1 Pin configuration 1,2 3,4 6 9 5,7,8,10 Output, balanced [Filter 1] Output, bala [ ... ]

B7653 PDF Datasheet Download