MMBT4401 Datasheet & Equivalents
NPN
SOT-23
General Purpose
JSMSEMI
VCEO
40V
Ic Max
600mA
Pd Max
350mW
hFE Gain
100
Quick Reference
The MMBT4401 is a NPN bipolar junction transistor in a SOT-23 package, manufactured by JSMSEMI. It supports a breakdown voltage of 40V and continuous collector current of 600mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | JSMSEMI | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 40V | Max breakdown voltage |
| Collector Current (Ic) | 600mA | Max current handling |
| Power Dissipation (Pd) | 350mW | Max thermal limit |
| DC Current Gain (hFE) | 100 | Base signal amplification ratio |
| Transition Frequency (fT) | 250MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 750mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 6V | Max emitter-base breakdown |
| Collector Cutoff Current | 100nA | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| KN4401S-RTK/P | NPN | SOT-23 | 40V | 600mA | 100 | 350mW | KEC 📄 PDF |
| KTN2222AS-RTK/PS | NPN | SOT-23 | 40V | 600mA | 100 | 350mW | KEC 📄 PDF |
| MMBT2222A | NPN | SOT-23 | 40V | 600mA | 100 | 250mW | Nexperia 📄 PDF |
| 215 | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | JUXING 📄 PDF |
| MMBT2222A-1P | NPN | SOT-23 | 40V | 600mA | 100 | 350mW | DIODES 📄 PDF |
| MMBT2222A-7-F | NPN | SOT-23 | 40V | 600mA | 100 | 350mW | MCC 📄 PDF |
| MMBT2222A-TP | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | LGE 📄 PDF |
| MMBT2222ALT1 | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | JUXING 📄 PDF |
| MMBT4401 2X | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | JSCJ 📄 PDF |
| MMBT4401(RANGE:100-300) | NPN | SOT-23 | 40V | 600mA | 100 | 350mW | DIODES 📄 PDF |
| MMBT4401-13-F | NPN | SOT-23 | 40V | 600mA | 100 | 225mW | PANJIT 📄 PDF |
| MMBT4401-AU_R1_000A1 | NPN | SOT-23 | 40V | 600mA | 100 | 350mW | MCC 📄 PDF |
| MMBT4401-TP | NPN | SOT-23 | 40V | 600mA | 100 | 250mW | Nexperia 📄 PDF |
| PMBT2222A | NPN | SOT-23 | 40V | 600mA | 100 | 250mW | Nexperia 📄 PDF |
| 215 | NPN | SOT-23 | 40V | 600mA | 100 | 225mW | Shikues 📄 PDF |
| PMBT4401 | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | R+O 📄 PDF |
| 215 | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | TWGMC 📄 PDF |
| MMBT2222A | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | UMW 📄 PDF |
| MMBT2222A | NPN | SOT-23 | 40V | 600mA | 100 | 350mW | BLUE ROCKET 📄 PDF |
| MMBT2222A | NPN | SOT-23 | 40V | 600mA | 100 | 300mW | Guangdong Hot... 📄 PDF |