This part is a kind of semiconductor called D1875.

Function of this product has NPN EPITAXIAL SILICON TRANSISTOR.

Manufacturers : UTC

Image and pinout :

Some of the text within the PDF file :

UNISONIC TECHNOLOGIES CO., LTD 2SD1857 POWER TRANSISTOR „ FEATURES NPN EPITAXIAL SILICON TRANSISTOR * High breakdown voltage.(BVCEO=120V) * Low collector output capacitance.(Typ.20pF at VCB=10V) * High transition frequency.(fT=80MHz) „ ORDERING INFORMATION Pin Assignment 1 2 3 E C B E C B E C B E C B E C B Packing Tape Box Bulk Tape Reel Tape Box Bulk Ordering Number Package Lead Free Halogen Free 2SD1875L-x-T92-B 2SD1875G-x-T92-B TO-92 2SD1875L-x-T92-K 2SD1875G-x-T92-K TO-92 2SD1875L-x- T92-R 2SD1875G-x- T92-R TO-92 2SD1875L-x-T9N-B 2SD1875G-x-T9N-B TO-92NL 2SD1875L-x-T9N-K 2SD1875G-x-T9N-K TO-92NL Note: Pin Assignment E: EMITTER C: COLLECTOR B: BASE www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., LTD 1 of 2 QW-R201-057,D Free Datasheet http://www.datasheet-pdf. [ ... ]

D1875 PDF Datasheet Download