This part is a kind of semiconductor called MJE15030.

Function of this product has NPN Transistor.

Manufacturers : Central Semiconductor

Image and pinout :

Some of the text within the PDF file :

MJE15028 MJE15030 NPN MJE15029 MJE15031 PNP COMPLEMENTARY SILICON POWER TRANSISTORS CentralTM Semiconductor Corp. DESCRIPTION: The CENTRAL SEMICONDUCTOR MJE15028/MJE15029 Series types are Complementary Silicon Power Transistors designed for use in audio amplifier applications. MARKING: FULL PART NUMBER TO-220 CASE MAXIMUM RATINGS: (TA=25°C unless otherwise noted) SYMBOL Collector-Base Voltage Collector-Emitter Voltage VCBO VCEO Emitter-Base Voltage Continuous Collector Current VEBO IC Peak Collector Current Base Current ICM IB Power Dissipation Power Dissipation (TC=25°C) PD PD Operating and Storage Junction Temperature Thermal Resistance Thermal Resistance TJ, Tstg ΘJA ΘJC MJE15028 MJE15029 MJE15030 MJE15031 120 150 120 150 5.0 8.0 16 2.0 2.0 50 -65 to +150 6 [ ... ]

MJE15030 PDF Datasheet Download