This part is a kind of semiconductor called 2SD669.

Function of this product has NPN Epitaxial Planar Transistors.

Manufacturers : Weitron Technology

Image and pinout :

Some of the text within the PDF file :

2SD669/2SD669A NPN Epitaxial Planar Transistors P b Lead(Pb)-Free 1. EMITTER 2. COLLECTOR 3. BASE 1 2 3 TO-126C ABSOLUTE MAXIMUM RATINGS(TA=25ºC) Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Power Disspation Junction Temperature Storage , Temperature Symbol VCBO VCEO V EBO IC PD Tj Tstg 2SD669 180 120 5.0 1.5 1.0 150 -55 to +150 2SD669A 180 160 5.0 Unit V V V A W ˚C ˚C WEITRON http://www.weitron.com.tw 1/5 18-Oct-05 2SD669/2SD669A ELECTRICAL CHARACTERISTICS (TA=25°C unless otherwise noted) (Countinued) Characteristics Collector-Emitter Breakdown Voltage IC = 1.0mA, IE = 0 Collector-Base Breakdown Voltage 2SD669 IC = 10mA, IB = 0 2SD669A Emitter-Base Breakdown Voltage IC = 0, IE = 1.0mA Collector Cutoff Curr [ ... ]

2SD669 PDF Datasheet Download