This post explains for the transistor.
The Part Number is D965.
The function is 40V, 5A, NPN Transistor.
The package is TO-92.
Manufacturer: Panasonic, WEJ, Jiangsu Changjiang Electronics
Images:
Description
Silicon NPN epitaxial planer type Transistor
Features
1. Low collector to emitter saturation voltage VCE(sat).
2. Satisfactory operation performances at high efficiency with the low-voltage power supply
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = 40 V
2. Collector to Emitter Voltage: Vceo = 20 V
3. Emitter to Base Voltage: Vebo = 7 v
4. Collector Current: Ic = 5 A
5. Total Dissipation : Pc = 0.75 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C
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Applications
1. For low-frequency power amplification
2. For stroboscope