This part is a kind of semiconductor called A1318.

Function of this product has PNP Transistor.

Manufacturers : JCST

Image and pinout :

Some of the text within the PDF file :

JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD TO-92 Plastic-Encapsulate Transistors 2SA1318 TRANSISTOR (PNP) FEATURES z Large Current Capacity and Wide ASO APPLICATIONS z Capable of Being Used in The Low Frequency to High Frequency Range TO – 92 1. EMITTER 2. COLLECTOR 3. BASE MAXIMUM RATINGS (Ta=25℃ unless otherwise noted) Symbol VCBO VCEO VEBO IC PC RθJA Tj Tstg Parameter Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Collector Power Dissipation Thermal Resistance From Junction To Ambient Junction Temperature Storage Temperature Value -60 -50 -6 -0.2 500 250 150 -55~+150 Unit V V V A mW ℃/W ℃ ℃ ELECTRICAL CHARACTERISTICS (Ta=25℃ unless otherwise specified) Parameter Collector-base breakdown voltage Collector-emitter brea [ ... ]

A1318 PDF Datasheet Download