This part is a kind of semiconductor called 2SD2241.

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 2SD2241 DESCRIPTION ·With TO-220F package ·High DC current gain : hFE=2000 (Min) ·Low saturation voltage ·Complement to type 2SB1481 ·DARLINGTON APPLICATIONS ·With switching applications PINNING PIN 1 2 3 Base Collector Emitter DESCRIPTION Absolute maximum ratings (Ta=25 ) SYMBOL VCBO VCEO VEBO IC ICM IB PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-peak Base current Ta=25 Collector dissipation TC=25 Junction temperature Storage temperature 25 150 -55~150 CONDITIONS Open emitter Open base Open collector VALUE 100 100 5 ±4 ±6 0.3 2.0 W UNIT V V V A A A SavantIC Semiconductor Product Specification Sili [ ... ]

2SD2241 PDF Datasheet Download