This post explains for the transistor.
The Part Number is C2688, 2SC2688.
The function of this semiconductor is 300V, 0.2A, NPN Transistor.
The package is TO-126 Type
Manufacturers : Elite Enterprises
Preview images :
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Description :
The C2688 is 300V, 200mA, NPN Epitaxial Silicon Transistor.
Features :
1. Collector-Emitter Voltage : VCEO=300V
2. Collector Dissipation : PC(max)=10W
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage : Vcbo = 300 V
2. Collector to Emitter Voltage : Vceo = 300 V
3. Emitter to Base Voltage : Vebo = 5 V
4. Collector Current : Ic = 200 mA
5. Collector Dissipation : Pc = 1250 W
6. Junction Temperature : Tj = 150°C
7. Storage Temperature : Tsg = -55 ~ +150°C
Applications :
1. COLOR TV CHROMA OUTPUT & VIDEO OUTPUT [ … ]