2SD870 Datasheet – 1500V, 5A, NPN Power Transistor – MOSPEC

What is 2SD870?

It is a silicon NPN power transistor with a maximum collector current of 5A, maximum collector-emitter voltage of 600V and maximum power dissipation of 50W. It is used for high voltage and high current applications such as switching regulators, switching converters, motor drivers, relay drivers, and other general purpose amplification purposes.

Function: 5A, 1500V, 50W Power Transistor

Package: TO-3 Type

Manufacturer: Mospec Semiconductor


2SD870 datasheet


1. High Voltage: Vcbo = 1500V
2. Low Saturation Voltage : Vce(sat)  = 5.0V(Max.) @ Ic = 4.0A
3. High Speed : tf = 1.0 us (Max) @ Icp = 4.0A, Ib1 = 0.8A
4. Built-in Damper Type
5. Glass Passivated Collector-Base Junction


2SD870 NPN Transistor

Maximum Ratings

1. Collector-Base Voltage: Vcbo = 1500 V
2. Collector-Emitter Voltage: Vceo = 600 V
3. Emitter-Base Voltage: Vebo = 5.0 V
4. Collector Current-Continuous : Ic = 5.0 A
5. Base Current : Ib = 2.5 A

Other data sheets are available within the file: D870

2SD870 Datasheet PDF Download

2SD870 pdf