This part is a kind of semiconductor called BC237B.

Function of this product has NPN general purpose transistors.

Manufacturers : Philipss

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 BC237; BC237B NPN general purpose transistors Product specification Supersedes data of 1997 Mar 06 File under Discrete Semiconductors, SC04 1997 Sep 04 Philips Semiconductors Product specification NPN general purpose transistors FEATURES • Low current (max. 100 mA) • Low voltage (max. 45 V). APPLICATIONS • General purpose switching and amplification. DESCRIPTION NPN transistor in a TO-92; SOT54 plastic package. PNP complements: BC307; BC307B. PINNING PIN 1 2 3 emitter base collector BC237; BC237B DESCRIPTION 1 handbook, halfpage 2 3 3 2 1 MAM182 Fig.1 Simplified outline (TO-92; SOT54) and symbol. QUICK REFERENCE DATA SYMBOL VCBO VCEO ICM Ptot hFE PARAMETER collector-base voltage collector-emitter voltage peak c [ ... ]

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