BUF420A Transistor Datasheet & Specifications
NPN
TO-3PN
High Power
SPTECH
VCEO
450V
Ic Max
30A
Pd Max
200W
hFE Gain
50
Quick Reference
The BUF420A is a NPN bipolar transistor in a TO-3PN package by SPTECH. This datasheet provides complete specifications including 450V breakdown voltage and 30A continuous collector current. Download the BUF420A datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | SPTECH | Original Manufacturer |
| Package | TO-3PN | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 450V | Breakdown voltage |
| Ic | 30A | Collector current |
| Pd | 200W | Power dissipation |
| DC Current Gain | 50 | hFE / Beta |
| Frequency | 20MHz | Transition speed (fT) |
| VCEsat | 800mV | Saturation voltage |
| Vebo | 7V | Emitter-Base voltage |
| Cutoff Current | 10uA | Leakage (ICBO) |
| Temp | - | Operating temp |