2SC4138 Datasheet & Equivalents
NPN
TO-3P
High Power
SPTECH
VCEO
400V
Ic Max
10A
Pd Max
80W
hFE Gain
30
Quick Reference
The 2SC4138 is a NPN bipolar junction transistor in a TO-3P package, manufactured by SPTECH. It supports a breakdown voltage of 400V and continuous collector current of 10A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | SPTECH | Original Manufacturer |
| Package | TO-3P | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 400V | Max breakdown voltage |
| Collector Current (Ic) | 10A | Max current handling |
| Power Dissipation (Pd) | 80W | Max thermal limit |
| DC Current Gain (hFE) | 30 | Base signal amplification ratio |
| Transition Frequency (fT) | 10MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 500mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 10V | 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 |
|---|---|---|---|---|---|---|---|
| 2SC2625 | NPN | TO-3P | 400V | 10A | 10 | 80W | SPTECH 📄 PDF |
| 3DD13009AN | NPN | TO-3P | 400V | 12A | 30 | 120W | XCH 📄 PDF |
| 3DD13009AN | NPN | TO-3P | 400V | 12A | 35 | 120W | Wuxi China Re... 📄 PDF |
| D209L | NPN | TO-3P | 400V | 12A | 40 | 130W | OSEN 📄 PDF |
| 2SC3320 | NPN | TO-3P | 400V | 15A | 10 | 80W | SPTECH 📄 PDF |
| WGD4515 | NPN | TO-3P | 400V | 15A | 50 | 120W | Wild Goose 📄 PDF |
| 2SC2751 | NPN | TO-3P | 400V | 15A | 80 | 120W | SPTECH 📄 PDF |
| 2SC4110 | NPN | TO-3P | 400V | 25A | 50 | 160W | SPTECH 📄 PDF |
| 2SC5299 | NPN | TO-3P | 800V | 10A | 30 | 70W | SPTECH 📄 PDF |
| 2SC3307 | NPN | TO-3P | 800V | 10A | 10 | 150W | SPTECH 📄 PDF |
| 2SD1887 | NPN | TO-3P | 800V | 10A | 10 | 70W | SPTECH 📄 PDF |
| 2SC3998 | NPN | TO-3P | 800V | 20A | 40 | 200W | XCH 📄 PDF |
| FJL6920 | NPN | TO-3P | 800V | 20A | 8 | 200W | SPTECH 📄 PDF |
| 2SC3998 | NPN | TO-3P | 800V | 25A | 4 | 250W | SPTECH 📄 PDF |