This part is a kind of semiconductor called BFG92.

Function of this product has (BFGxxx) RF Bipolar Transistors.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

2.3 RF Bipolar transistors 2.3.1 Wideband transistors RF wideband transistors: http://www.semiconductors.philips.com/markets/mms/products/discretes/key_solutions/multimarket/transistors/25_45ghz_wideband/index.html Wideband transistors The fT-IC curve represents Transition Frequency (fT) characteristics as a function of collector current (IC) for the six generations of RF wideband transistors. A group of transistors having the same collector current (IC) & similar transition frequencies (fT) represents a curve. The curve number matches products in the table, detailing their RF characteristics. w w w .D at h S a t e e 4U . m o c 30 fT (GHz) 20 15 12 10 9 8 7 6 5 4 3 (18) (7) (8) (25) (27) (29) (31) (30) (19) (20) (21) (14) (4) 2 (1) 1.5 1.2 1 0.9 0.8 0.1 0.2 0.5 Wid [ ... ]

BFG92 PDF Datasheet Download