This part is a kind of semiconductor called 2SD1616.

Function of this product has NPN EPITAXIAL SILICON TRANSISTOR.

Manufacturers : Unisonic Technologies

Image and pinout :

Some of the text within the PDF file :

UNISONIC TECHNOLOGIES CO., LTD 2SD1616/A NPN SILICON TRANSISTOR NPN EPITAXIAL SILICON TRANSISTOR  DESCRIPTION * Audio frequency power amplifier * Medium speed switching  ORDERING INFORMATION Ordering Number Lead Free Plating Halogen-Free - 2SD1616G-x-AB3-R - 2SD1616G-x-G03-K 2SD1616L-x-T92-B 2SD1616G-x-T92-B 2SD1616L-x-T92-K 2SD1616G-x-T92-K 2SD1616L-x-T9S-K 2SD1616G-x-T9S-K - 2SD1616AG-x-AB3-R - 2SD1616AG-x-G03-K 2SD1616AL-x-T92-B 2SD1616AG-x-T92-B 2SD1616AL-x-T92-K 2SD1616AG-x-T92-K 2SD1616AL-x-T9S-K 2SD1616AG-x-T9S-K Note: Pin Assignment: C: Collector B: Base E: Emitter Package SOT-89 SIP-3 TO-92 TO-92 TO-92SP SOT-89 SIP-3 TO-92 TO-92 TO-92SP Pin Assignment 123 BCE ECB ECB ECB ECB BCE ECB ECB ECB ECB Packing Tape Reel Bulk Tape Box Bulk Bulk Tape Reel [ ... ]

2SD1616 PDF Datasheet Download