This part is a kind of semiconductor called 2N2222.

Function of this product has Ultra-Fast Transient Response LDO Regulator.

Manufacturers : ART CHIP

Image and pinout :

Some of the text within the PDF file :

2N2220/2N2221/2N2222 300/600mA, Ultra-Fast Transient Response LDO Regulator 2N2220,2N2221,and 2N2222 are epitaxial NPN silicon planar transistors in TO 18 case (18 A 3 DIN 41876). The collector is electrically connected to the case. The transistors are particularly suitable for use as high-speed switches. Type 2N2220 2N2221 2N2222 Ordering code Q68000-A4573 Q62702-F134 Q62702-F135 Maximum ratings Collector-emitter Voltage Collector-base voltage Emitter-base voltage Collector current Junction temperature Storage temperature range Total power dissipation (Tamb =25 Total Power dissipation (Tcase=25 Thermal resistance Junction to ambient air Junction to case ) ) VCEO VCBO VEBO Ic Tj Tstg Ptot Ptot RthJA RthJC 2N2220 2N2221 2N2222 30 60 5 0.8 175 -65 to +200 0.5 1.8 ≤300 ≤83 V V V [ ... ]

2N2222 PDF Datasheet Download