This part is a kind of semiconductor called 2SC1815.

Function of this product has AUDIO FREQUENCY AMPLIFIER HIGH FREQUENCY OSC NPN TRANSISTOR.

Manufacturers : UTC

Image and pinout :

Some of the text within the PDF file :

UNISONIC TECHNOLOGIES CO., LTD 2SC1815 NPN EPITAXIAL SILICON TRANSISTOR AUDIO FREQUENCY AMPLIFIER HIGH FREQUENCY OSC NPN TRANSISTOR FEATURES * Collector-Emitter voltage: BVCEO=50V * Collector current up to 150mA * High hFE linearity * Complimentary to UTC 2SA1015 1 TO-92 *Pb-free plating product number: 2SC1815L ORDERING INFORMATION Order Number Normal Lead Free Plating 2SC1815-x-T92-A-B 2SC1815L-x-T92-A-B 2SC1815-x-T92-A-K 2SC1815L-x-T92-A-K Package TO-92 TO-92 Pin Assignment 1 2 3 E C B E C B Packing Tape Box Bulk 2SC1815L-x-T92-A-B (1)Packing Type (2)Pin Assignment (3)Package Type (4)Rank (5)Lead Plating (1) (2) (3) (4) (5) B: Tape Box, K: Bulk refer to Pin Assignment T92: TO-92 x: refer to Classification of hFE1 L: Lead Free Plating, Blank: Pb/Sn www.un [ ... ]

2SC1815 PDF Datasheet Download