This part is a kind of semiconductor called 2N222A.
Function of this product has SWITCHING TRANSISTOR NPN SILICON.
Manufacturers : Microsemi
Image and pinout :

Some of the text within the PDF file :
2N222A DIE A Microsemi Company 580 Pleasant St. Watertown, MA 02172 Phone: 617-924-9280 Fax: 617-924-1235 DIE SPECIFICATION SWITCHING TRANSISTOR NPN SILICON FEATURES: n ELECTRICAL PERFORMANCE I.A.W. MIL-PRF-19500/255 n AVAILABLE IN WAFER OR CHIP FORM FOR HYBRID APPLICATIONS n GENERAL PURPOSE-HIGH SPEED SWITCHING APPLICATIONS n LOW VCE(sat): .3V @ IC = 150 mAdc PHYSICAL DIMENSIONS Absolute Maximum Ratings: Symbol Vceo Vcbo Vebo Ic Tj, Tstg Parameter Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current- Continuous Operating Junction & Storage Temperature Range Limit 50 75 6.0 800 -65 to +200 Unit Vdc Vdc Vdc mAdc °C Packaging Options: W: Wafer (100% probed) U: Wafer (sample probed) D: Chip (Waffle Pack) B: Chip (Vial) V: Chip (Waffle Pack, 100% visua [ ... ]
2N222A PDF Datasheet Download
