This part is a kind of semiconductor called 2N1482.

Function of this product has (2N1479 - 2N1482) NPN SILICON MEDIUM POWER TRANSISTOR.

Manufacturers : Microsemi Corporation

Image and pinout :

Some of the text within the PDF file :

TECHNICAL DATA NPN SILICON MEDIUM POWER TRANSISTOR Qualified per MIL-PRF-19500/207 Devices 2N1479 2N1480 2N1481 2N1482 Qualified Level MAXIMUM RATINGS Ratings Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Base-Current Total Power Dissipation @ TA = 250C Operating & Storage Junction Temperature Range Symbol VCEO VCBO VEBO IC IB PT TJ, Tstg Symbol RθJC 2N1479 2N1481 40 60 12 1.5 1.0 1.0 2N1480 2N1482 55 100 Unit Vdc Vdc Vdc Adc Adc W 0 -65 to +200 Max. 35 C THERMAL CHARACTERISTICS Characteristics Thermal Resistance, Junction-to-Case Unit 0 C/W TO-5* *See Appendix A for Package Outline ELECTRICAL CHARACTERISTICS (TA = 250C unless otherwise noted) Characteristics Symbol Min. Max. Unit OFF CHARACTERISTICS Collector-Emitter Breakdown Voltage [ ... ]

2N1482 PDF Datasheet Download