This part is a kind of semiconductor called KN2222.

Function of this product has EPITAXIAL PLANAR NPN TRANSISTOR.

Manufacturers : KEC

Image and pinout :

Some of the text within the PDF file :

SEMICONDUCTOR TECHNICAL DATA GENERAL PURPOSE APPLICATION. SWITCHING APPLICATION. B KN2222/A EPITAXIAL PLANAR NPN TRANSISTOR C FEATURES : ICEX=10nA(Max.) ; VCE=60V, VEB(OFF)=3V. ᴌLow Saturation Voltage : VCE(sat)=0.3V(Max.) ; IC=150mA, IB=15mA. ᴌComplementary to the KN2907/2907A. K D E G N A ᴌLow Leakage Current H MAXIMUM RATING (Ta=25ᴱ) KN2222 KN2222A 60 30 5 600 625 150 -55ᴕ150 75 40 6 L F F M CHARACTERISTIC Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Collector Power Dissipation (Ta=25ᴱ) Junction Temperature Storage Temperature Range SYMBOL VCBO VCEO VEBO IC PC Tj Tstg RATING UNIT V V V mA mW ᴱ ᴱ 1 2 3 C DIM A B C D E F G H J K L M N MILLIMETERS 4.70 MAX 4.80 MAX 3.70 MAX 0.45 1.00 1.27 0.85 0.45 _ 0.50 14.00 [ ... ]

KN2222 PDF Datasheet Download