This part is a kind of semiconductor called 13003.

Function of this product has NPN Epitaxial Silicon Transistor.

Manufacturers : Elite Enterprises

Image and pinout :

Some of the text within the PDF file :

13003 NPN Epitaxial Silicon Transistor TO-220 HIGH VOLTAGE SWITCHING APPLICATIONS Collector-Emitter Voltage: VCEO=400V Collector Dissipation: PC(max)=1500mW Absolute Maximum Ratings (TA=25oC) Characteristic Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Collector Dissipation Junction Temperature Storage Temperature Symbol VCBO VCEO VEBO IC PC TJ TSTG Rating 700 400 9 1500 1500 150 -55~+150 Unit V V V mA mW o o C C 1. Base 2. Collector 3. Emitter Electrical Characteristics (TA=25oC) Characteristic Collector-Base Breakdown Voltage Collector-Emitter Breakdown Voltage Emitter-Base Breakdown Voltage Collector Cut-off Current Collector Cut-off Current Emitter Cut-off Current DC Current Gain Collector-Emitter Saturation Voltage Base-emitter Saturation [ ... ]

13003 PDF Datasheet Download