This part is a kind of semiconductor called B1706.

Function of this product has Bandpass Filter.

Manufacturers : EPCOS

Image and pinout :

Some of the text within the PDF file :

SAW Components Data Sheet B1706 SAW Components Bandpass Filter Preliminary Data B1706 259,86 MHz SMD ceramic package QCC12C Features 2,54 1,0 s IF filter for digital satellite radio s Constant group delay s Ceramic package for Surface Mounted 2,54 000 111 00 11 11 000 111 00 00 11 00 11 111 00 11 00 000 000 111 00 000 111 11 11 00 11 11 111 000 11 00 000 00 111 000 111 00 11 000 111 000 111 00 11 12 11 1 2 3 1,4 4 Technology (SMT) Terminals 1,48 bottom view 111 000 00 11 000 111 00 11 000 111 00 11 000 000 111 00 11 111 00 11 00 11 000 111 11 00 00 11 000 111 00 11 000 11 111 00 00 11 00 11 10 9 8 7 0,6 111 000 000 111 000 111 000 111 000 111 00 11 00 11 11 00 00 11 00 11 11 00 00 11 00 11 00 11 00 11 s Ni, gold-plated 6 5 side view 5,0 top view 7,0 D [ ... ]

B1706 PDF Datasheet Download