This part is a kind of semiconductor called 2SD1414.

Function of this product has SILICON POWER TRANSISTOR.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon NPN Power Transistors DESCRIPTION ·With TO-220Fa package ·High DC current gain ·Low saturation voltage ·Complement to type 2SB1024 ·DARLINGTON APPLICATIONS ·Power amplifier and switching applications ·Hammer drive,pulse motor drive applications PINNING PIN 1 2 3 Base Collector Emitter DESCRIPTION 2SD1414 Fig.1 simplified outline (TO-220Fa) and symbol Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VCEO VEBO IC IB PC Tj Tstg PARAMETER Collector-base voltage Collector -emitter voltage Emitter-base voltage Collector current Base current Collector power dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE 100 80 5 4 0.5 20 150 -55~150 UNIT V V V A A W [ ... ]

2SD1414 PDF Datasheet Download