MMBT3904 Datasheet & Equivalents
NPN
SOT-23
General Purpose
FUXINSEMI
VCEO
40V
Ic Max
200mA
Pd Max
200mW
hFE Gain
300
Quick Reference
The MMBT3904 is a NPN bipolar junction transistor in a SOT-23 package, manufactured by FUXINSEMI. It supports a breakdown voltage of 40V and continuous collector current of 200mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | FUXINSEMI | 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) | 200mA | Max current handling |
| Power Dissipation (Pd) | 200mW | Max thermal limit |
| DC Current Gain (hFE) | 300 | Base signal amplification ratio |
| Transition Frequency (fT) | 300MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | - | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | - | Max emitter-base breakdown |
| Collector Cutoff Current | - | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| BCW31-HXY | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | HXY MOSFET 📄 PDF |
| BCW32-HXY | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | HXY MOSFET 📄 PDF |
| BSR17A-HXY | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | HXY MOSFET 📄 PDF |
| CMPT3904ETR-HXY | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | HXY MOSFET 📄 PDF |
| MMBT3904-1AM(RANGE:100-300) | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | MDD(Microdiod... 📄 PDF |
| MMBT3904-E | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | MDD(Microdiod... 📄 PDF |
| MMBT3904-TD | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | TDSEMIC 📄 PDF |
| MMBT3904/1AM | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | OSEN 📄 PDF |
| MMBT3904K | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | Shikues 📄 PDF |
| MMBT3904LT1G-CN | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | ChipNobo 📄 PDF |
| MMBT3904Q | NPN | SOT-23 | 40V | 200mA | 300 | 300mW | YANGJIE 📄 PDF |
| MMBT3904X | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | JingYang 📄 PDF |
| MMBT4124-HXY | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | HXY MOSFET 📄 PDF |
| SST3904T116-HXY | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | HXY MOSFET 📄 PDF |
| MMBT3904LT1G | NPN | SOT-23 | 40V | 200mA | 300 | 200mW | FUXINSEMI 📄 PDF |
| 2N3904S-RTK/PS | NPN | SOT-23 | 40V | 200mA | 100 | 350mW | KEC 📄 PDF |
| MMBT3904 RFG | NPN | SOT-23 | 40V | 200mA | 100 | 300mW | Taiwan Semico... 📄 PDF |
| MMBT3904(RANGE:100-300) | NPN | SOT-23 | 40V | 200mA | 100 | 200mW | JSCJ 📄 PDF |
| MMBT3904 | NPN | SOT-23 | 40V | 200mA | 100 | 250mW | Nexperia 📄 PDF |
| 215 | NPN | SOT-23 | 40V | 200mA | 100 | 350mW | DIODES 📄 PDF |