This part is a kind of semiconductor called BFR93.
Function of this product has NPN 5 GHz wideband transistor.
Manufacturers : NXP
Image and pinout :

Some of the text within the PDF file :
DISCRETE SEMICONDUCTORS DATA SHEET BFR93 NPN 5 GHz wideband transistor Product specification Supersedes data of September 1995 File under discrete semiconductors, SC14 1997 Oct 29 Philips Semiconductors Product specification NPN 5 GHz wideband transistor FEATURES • Very low intermodulation distortion • High power gain • Excellent wideband properties and low noise up to high frequencies due to its very high transition frequency. APPLICATIONS • RF wideband amplifiers and oscillators. QUICK REFERENCE DATA SYMBOL VCBO VCEO IC Ptot Cre fT GUM F dim PARAMETER collector-base voltage collector-emitter voltage collector current (DC) total power dissipation feedback capacitance transition frequency maximum unilateral power gain noise figure intermodulation distortion Ts ≤ 95 °C IC [ ... ]
BFR93 PDF Datasheet Download
