This Part Name is D1803.
This is Semiconductor.
This product has 2SD1803 functions.
Manufacturers of the product is Sanyo Semicon Device
Image and pinout :
Some of the text files within the PDF file :
Ordering number:EN2085B PNP/NPN Epitaxial Planar Silicon Transistors 2SB1203/2SD1803 High-Current Switching Applications Applications · Relay drivers, high-speed inverters, converters, and other general high-current switching applications. Package Dimensions unit:mm 2045B [2SB1203/2SD1803] Features · Low collector-to-emitter saturation voltage. · High current and high fT. · Excellent linearity of hFE. · Fast switching speed. · Small and slim package making it easy to make 2SB1203/2SD1803-applied sets smaller. 1 : Base 2 : Collector 3 : Emitter 4 : Collector SANYO : TP unit:mm 2044B [2SB1203/2SD1803] 1 : Base 2 : Collector 3 : Emitter 4 : Collector SANYO : TP-FA Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical [ ... ]