This post explains for the transistor.
The Part Number is C9015, KTC9015.
The function of this semiconductor is PNP Transistor.
The package is TO-92 Type
Manufacturer: KEC
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Description
C9015 is -50V, -150mA, PNP Transistor.
Characteristics:
Features
1. Excellent hFE Linearity : hFE(IC=-0.1mA)/hFE(IC=-2mA)=0.95(Typ.).
2. Low Noise :NF=1dB(Typ.) at f=1kHz.
3. Complementary to KTC9014. […]
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = – 50 V
2. Collector to Emitter Voltage: Vceo = – 50 V
3. Emitter to Base Voltage: Vebo = – 5V
4. Collector Current: Ic = – 150 mA
5. Total Dissipation : Pc = 625 M
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C
Applications:
1. General Purpose
2. Switching