2SC825 N-Channel Transistor Metal 1500V 3.5A

The 2SC825 N-Channel Transistor Metal 1500V 3.5A is an exceptionally robust high-voltage silicon NPN transistor designed for applications that demand extreme electrical endurance. Moreover, its metal-case construction provides superior durability and outstanding heat dissipation, making it a trusted solution for engineers working with power conversion, high-voltage stages, and industrial equipment. Because authentic versions of this component are no longer widely manufactured, it has become both new and rare, which significantly increases its value for restoration work and professional electronic repairs.

Additionally, this transistor is delivered in brand-new condition, which ensures stable long-term performance even in harsh electrical environments. Furthermore, its combination of a 1500-volt breakdown rating and a 3.5-amp current capability allows it to operate effectively in circuits where standard plastic-case transistors would fail. Therefore, it is widely used in designs where reliability, thermal performance, and high-energy tolerance are essential.

Key Features

• Ultra high-voltage capability suitable for industrial circuits

• Strong metal package for enhanced thermal performance

• Low saturation voltage for efficient switching

• Reliable NPN structure for consistent operation

• Rare original component supplied in new condition

Typical Applications

• High-voltage power supplies and converters

• CRT display and flyback driver circuits

• Industrial pulse and switching systems

• Tesla coil and high-energy experimental setups

• Restoration of vintage industrial power electronics

In addition to its impressive voltage rating, the 2SC825 N-Channel Transistor Metal 1500V 3.5A provides excellent switching speed and stable gain characteristics. Consequently, it remains a preferred choice for technicians who require authentic, rugged components capable of handling severe electrical stress. Moreover, its metal TO-3 package ensures extremely low thermal resistance, which further enhances reliability under continuous high-power operation.

Datasheet Specifications

• Transistor Type: NPN High-Voltage Power Transistor

• Collector–Emitter Voltage (Vceo): 1500 V

• Collector–Base Voltage (Vcbo): 1600 V

• Emitter–Base Voltage (Vebo): 5 V

• Collector Current (Ic): 3.5 A

• Power Dissipation: 80–120 W (with proper heatsink)

• DC Current Gain (hFE): 20–60

• Transition Frequency (ft): 1–2 MHz

• Package: Metal TO-3

• Pinout:

  1. Base

  2. Emitter
     Case = Collector

Why This Component Is Valuable

• Its extreme voltage capability surpasses standard transistor ratings

• Metal construction ensures superior thermal control

• Rare, authentic unit ideal for restoration and industrial repairs

• Provides stable performance in high-stress electrical environments