This part is a kind of semiconductor called BD241BFP.

Function of this product has COMPLEMENTARY SILICON POWER TRANSISTORS.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

BD241BFP BD242BFP COMPLEMENTARY SILICON POWER TRANSISTORS s s s s SGS-THOMSON PREFERRED SALESTYPES COMPLEMENTARY PNP - NPN DEVICES FULLY MOLDED ISOLATED PACKAGE 2000 V DC ISOLATION (U.L. COMPLIANT) APPLICATIONS s GENERAL PURPOSE SWITCHING s GENERAL PURPOSE AMPLIFIERS DESCRIPTION The BD241BFP is silicon epitaxial-base NPN transistors mounted in TO-220FP fully molded isolated package. It is inteded for power linear and switching applications. The complementary PNP types is the BD242BFP. 3 1 2 TO-220FP INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter NPN PNP V CER V CEO V EBO IC I CM IB P t ot T stg Tj Collector-Base Voltage (R BE = 100 Ω ) Collector-Emitter Voltage (I B = 0) Emitter-Base Voltage (I C = 0) Collector Current Collector Peak Current Base Current Total [ ... ]

BD241BFP PDF Datasheet Download