This part is a kind of semiconductor called BC517.

Function of this product has NPN Darlington transistor.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 BC517 NPN Darlington transistor Product specification Supersedes data of 1997 Apr 23 1999 Apr 23 Philips Semiconductors NPN Darlington transistor Product specification BC517 FEATURES • High current (max. 500 mA) • Low voltage (max. 30 V) • Very high DC current gain (min. 30000). APPLICATIONS • Where very high amplification is required. DESCRIPTION NPN Darlington transistor in a TO-92; SOT54 plastic package. PNP complement: BC516. PINNING PIN 1 2 3 emitter base collector DESCRIPTION handbook, halfpage 1 2 3 23 TR1 TR2 1 MAM302 Fig.1 Simplified outline (TO-92; SOT54) and symbol. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VCBO VCES VEBO IC ICM IB Ptot Tstg Tj Tamb PARA [ ... ]

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