2SD424 Datasheet & Equivalents
NPN
TO-3
High Power
SPTECH
VCEO
180V
Ic Max
15A
Pd Max
150W
hFE Gain
140
Quick Reference
The 2SD424 is a NPN bipolar junction transistor in a TO-3 package, manufactured by SPTECH. It supports a breakdown voltage of 180V and continuous collector current of 15A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | SPTECH | Original Manufacturer |
| Package | TO-3 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 180V | Max breakdown voltage |
| Collector Current (Ic) | 15A | Max current handling |
| Power Dissipation (Pd) | 150W | Max thermal limit |
| DC Current Gain (hFE) | 140 | Base signal amplification ratio |
| Transition Frequency (fT) | 5MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 3V | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 100uA | Leakage current when OFF |
| Operating Temp | - | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| MJ15026 | NPN | TO-3 | 200V | 16A | 150 | 250W | SPTECH 📄 PDF |
| MJ15022G | NPN | TO-3 | 200V | 16A | 15 | 250W | onsemi 📄 PDF |
| MJ21194 | NPN | TO-3 | 250V | 16A | 75 | 250W | SPTECH 📄 PDF |
| MJ15024 | NPN | TO-3 | 250V | 16A | 60 | 250W | SPTECH 📄 PDF |
| MJ21196G | NPN | TO-3 | 250V | 16A | 25 | 250W | onsemi 📄 PDF |
| MJ15024G | NPN | TO-3 | 250V | 16A | 15 | 250W | onsemi 📄 PDF |
| 2N6678 | NPN | TO-3 | 400V | 15A | 8 | 175W | SPTECH 📄 PDF |
| 2SC2246 | NPN | TO-3 | 400V | 15A | 6 | 100W | SPTECH 📄 PDF |
| BU931 | NPN | TO-3 | 400V | 15A | 300 | 175W | SPTECH 📄 PDF |
| 2SC3058 | NPN | TO-3 | 400V | 30A | 40 | 200W | SPTECH 📄 PDF |
| BUX48A | NPN | TO-3 | 450V | 15A | 8 | 175W | SPTECH 📄 PDF |