This part is a kind of semiconductor called BFS20.

Function of this product has NPN medium frequency transistor.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D088 BFS20 NPN medium frequency transistor Product specification Supersedes data of 1997 Jul 08 1999 Apr 15 Philips Semiconductors Product specification NPN medium frequency transistor FEATURES • Low current (max. 25 mA) • Low voltage (max. 20 V) • Very low feedback capacitance (typ. 350 fF). APPLICATIONS • IF and VHF applications in thick and thin-film circuits. handbook, halfpage BFS20 PINNING PIN 1 2 3 base emitter collector DESCRIPTION 3 3 1 2 DESCRIPTION NPN medium frequency transistor in a SOT23 plastic package. MARKING TYPE NUMBER BFS20 Note 1. ∗ = p : Made in Hong Kong. ∗ = t : Made in Malaysia. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VCBO VCEO VEBO IC ICM Ptot [ ... ]

BFS20 PDF Datasheet Download