This post explains for the transistor.
The Part Number is 2SD1886, D1886
The function of this semiconductor is 800V, NPN Silicon Transistor.
The package is TO-3PML Type.
Manufacturer: Sanyo Semicon Device
Preview images :
D1886 is 800V, 8A, NPN Triple Diffused Planar Silicon Transistor. A NPN transistor is a type of bipolar junction transistor (BJT) that consists of two n-type semiconductor materials separated by a single p-type material.
The NPN transistor is used to amplify or switch electronic signals and is widely used in many electronic circuits. It works by controlling the current flow between the collector and emitter terminals through the base terminal.
When a small current is applied to the base, it controls a much larger current between the collector and emitter, making the NPN transistor an effective amplifier or switch.
1. High speed (tf=100ns).
2. High breakdown voltage (VCBO=1500V).
3. High reliability (adoption of HVP process)
7. Storage Temperature: Tsg = -55 ~ +150°C
1. Color TV horizontal diflection output.
2. Color display horizontal deflection output.