This part is a kind of semiconductor called 2N2484.
Function of this product has NPN SILICON AMPLIFIER TRANSISTOR.
Manufacturers : Seme LAB
Image and pinout :

Some of the text within the PDF file :
SEME LAB MECHANICAL DATA Dimensions in mm (inches) 5.84 (0.230) 5.31 (0.209) 4.95 (0.195) 4.52 (0.178) 2N2484 NPN SILICON AMPLIFIER TRANSISTOR FEATURES • SILICON PLANAR EPITAXIAL NPN TRANSISTOR 4.32 (0.170) 12.7 (0.500) 5.33 (0.210) min. 0.48 (0.019) 0.41 (0.016) dia. 2.54 (0.100) Nom. 31 2 TO18 PIN 1 = Emitter PIN 2 = Base PIN 3 = Collector ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise stated) VCBO Collector – Base Voltage VCEO Collector – Emitter Voltage VEBO Emitter – Base Voltage IC Collector Current Continuous PD Total Device Dissipation @ TA =25°C Derate above 25°C 60V 60V 6V 50mA 360mW 2.06mW / °C PD Total Device Dissipation @ TC =25°C Derate above 25°C 1.2W 6.85mW / °C TSTG , TJ Operating and Storage Temperature Range –65 to +200°C Sem [ ... ]
2N2484 PDF Datasheet Download
