D1878 PDF Datasheet – 800V, 5A, NPN, 2SD1878 Transistor

Part Number: D1878, 2SD1878

Function: 800V, 5A, NPN Transistor

Package: TO-3PML Type

Manufacturer: Sanyo Semicon Device

Images:D1878 pdf pinout

Pinouts: 1 : Base 2 : Collector 3 : Emitter


D1878 is 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).

4. On-chip damper diode.

D1878 datasheet transistor

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 1500 V

2. Collector to Emitter Voltage: Vceo = 800 V

3. Emitter to Base Voltage: Vebo = 6 V

4. Collector Current: Ic = 5 A

5. Collector Dissipation : Pc = 60 W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C



1. Color TV Horizontal Deflection Output

2.  Color TV horizontal diflection output.


D1878 PDF Datasheet