This part is a kind of semiconductor called BLF2047L.

Function of this product has UHF power LDMOS transistor.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D379 BLF2047L UHF power LDMOS transistor Product specification Supersedes data of 1999 Apr 01 1999 Dec 06 Philips Semiconductors Product specification UHF power LDMOS transistor FEATURES • High power gain • Easy power control • Excellent ruggedness • Source on underside eliminates DC isolators, reducing common mode inductance • Designed for broadband operation (1.8 to 2 GHz) • Internal input and output matching for high gain and efficiency. handbook, halfpage BLF2047L PINNING PIN 1 2 3 drain gate source, connected to flange DESCRIPTION 1 APPLICATIONS • Common source class-AB operation for PCN and PCS applications in the 1800 to 2000 MHz frequency range. DESCRIPTION Silicon N-channel enhancement mode lateral D-MOS [ ... ]

BLF2047L PDF Datasheet Download