This part is a kind of semiconductor called TIP141.

Function of this product has COMPLEMENTARY SILICON POWER DARLINGTON TRANSISTORS.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

® TIP140/141/142 TIP145/146/147 COMPLEMENTARY SILICON POWER DARLINGTON TRANSISTORS s s s s TIP141, TIP142, TIP145 AND TIP147 ARE STMicroelectronics PREFERRED SALESTYPES COMPLEMENTARY PNP - NPN DEVICES MONOLITHIC DARLINGTON CONFIGURATION INTEGRATED ANTIPARALLEL COLLECTOR-EMITTER DIODE 3 2 1 APPLICATIONS s LINEAR AND SWITCHING INDUSTRIAL EQUIPMENT DESCRIPTION The TIP140, TIP141 and TIP142 are silicon Epitaxial-Base NPN power transistors in monolithic Darlington configuration, mounted in TO-218 plastic package. They are intented for use in power linear and switching applications. The complementary PNP types are TIP145, TIP146 and TIP147 respectively. TO-218 INTERNAL SCHEMATIC DIAGRAM R1 Typ. = 5 KΩ R2 Typ. = 150 Ω ABSOLUTE MAXIMUM RATINGS Symbol Parameter NPN PNP V CBO V CEO V [ ... ]

TIP141 PDF Datasheet Download