2SC3259 NPN power transistor 800V 3A TO-220
The C3259 is a robust NPN power transistor designed for demanding power electronics applications. It combines a high collector-emitter voltage rating, substantial collector current capability and fast switching characteristics to support switching power supplies, motor drivers, audio output stages and other high-voltage, high-power circuits. The device is supplied in a TO-220 package with a metal tab (collector) for easy heatsinking and effective thermal management. Its construction provides low saturation voltage and stable performance under high load and temperature, with protective design margins suitable for industrial use.
Features:
- NPN bipolar power transistor (silicon).
- High collector-emitter voltage capability.
- High continuous collector current rating.
- Low saturation voltage for efficient switching.
- Good switching speed for power applications.
- Robust thermal performance in TO-220 package (tab = collector).
- Suitable for SMPS, inverters, audio amplifiers, motor drivers.
Specifications:
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Transistor Type: | — | NPN BJT | — |
| Collector-Emitter Voltage: | VCEO | 800 | V |
| Collector-Base Voltage: | VCB | 800 | V |
| Continuous Collector Current: | IC | 3 | A |
| Power Dissipation: | Pt | 40 | W |
| DC Current Gain: | hFE | 7 | — |
| Package: | — | TO-220 | — |
Pinout:
| Pin | Name | Description |
|---|---|---|
| 1 | Base (B) | Control terminal |
| 2 | Collector (C) | Main current path |
| 3 | Emitter (E) | Output terminal |
Applications:
- Switch-mode power supplies.
- Inverter & UPS circuits.
- Audio power amplifiers.
- Motor drivers.
- High-voltage switching circuits.
Packages:
- 1x 2SC3259 NPN power transistor 800V 3A TO-220
