This part is a kind of semiconductor called BF450.

Function of this product has PNP medium frequency transistor.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 BF450 PNP medium frequency transistor Product specification Supersedes data of September 1994 File under Discrete Semiconductors, SC04 1997 Jul 11 Philips Semiconductors Product specification PNP medium frequency transistor FEATURES • Low current (max. 25 mA) • Low voltage (max. 40 V). APPLICATIONS • HF and IF stages in radio receivers • Mixer stages in AM receivers. 1 handbook, halfpage BF450 PINNING PIN 1 2 3 base emitter collector DESCRIPTION DESCRIPTION PNP medium frequency transistor in a TO-92; SOT54 plastic package. Fig.1 2 3 3 1 2 MAM271 Simplified outline (TO-92; SOT54) and symbol. QUICK REFERENCE DATA SYMBOL VCBO VCEO ICM Ptot hFE fT PARAMETER collector-base voltage collector-emitter voltage peak coll [ ... ]

BF450 PDF Datasheet Download