This post explains for the semiconductor BC158.
The function of this semiconductor is PNP Transistor.
Manufacturer: Unitra Cemi, Tesla
Preview images :
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = – 25 V
2. Collector to Emitter Voltage: Vceo = – 30 V
3. Emitter to Base Voltage: Vebo = – 5 V
4. Collector Current: Ic = – 100 mA
5. Total Dissipation : Pc = 300 mW
6. Junction Temperature: Tj = 125°C
7. Storage Temperature: Tsg = -55 ~ +1250°C
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