FMMT4240-HXY Datasheet & Equivalents
NPN
SOT-23
General Purpose
HXY MOSFET
VCEO
50V
Ic Max
2A
Pd Max
350mW
hFE Gain
300
Quick Reference
The FMMT4240-HXY is a NPN bipolar junction transistor in a SOT-23 package, manufactured by HXY MOSFET. It supports a breakdown voltage of 50V and continuous collector current of 2A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | HXY MOSFET | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 50V | Max breakdown voltage |
| Collector Current (Ic) | 2A | Max current handling |
| Power Dissipation (Pd) | 350mW | Max thermal limit |
| DC Current Gain (hFE) | 300 | Base signal amplification ratio |
| Transition Frequency (fT) | 100MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 220mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | 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 |
|---|---|---|---|---|---|---|---|
| DSS4240T-7-HXY | NPN | SOT-23 | 50V | 2A | 300 | 625mW | HXY MOSFET 📄 PDF |
| FMMT619-JSM | NPN | SOT-23 | 50V | 2A | 300 | 625mW | JSMSEMI 📄 PDF |
| FMMT619TA-HXY | NPN | SOT-23 | 50V | 2A | 300 | 350mW | HXY MOSFET 📄 PDF |
| PBSS4350T-HXY | NPN | SOT-23 | 50V | 2A | 300 | 350mW | HXY MOSFET 📄 PDF |
| FMMT619 | NPN | SOT-23 | 50V | 2A | 300 | 250mW | GOODWORK 📄 PDF |
| FMMT619TA | NPN | SOT-23 | 50V | 2A | 200 | 625mW | DIODES 📄 PDF |
| FMMT619TC | NPN | SOT-23 | 50V | 2A | 200 | 625mW | DIODES 📄 PDF |
| FMMT619 | NPN | SOT-23 | 50V | 2A | 200 | 350mW | JSCJ 📄 PDF |
| 2SC2655G-Y-AE3-R | NPN | SOT-23 | 50V | 2A | 120 | 350mW | UTC 📄 PDF |
| PBSS4350T | NPN | SOT-23 | 50V | 2A | 100 | 300mW | Nexperia 📄 PDF |
| 215 | NPN | SOT-23 | 50V | 2A | 100 | 350mW | BORN 📄 PDF |
| FMMT619 | NPN | SOT-23 | 50V | 2A | - | 300mW | GOODWORK 📄 PDF |
| PBSS4350T-GK | NPN | SOT-23 | 50V | 4A | 300 | 1.25W | DIODES 📄 PDF |
| ZXTN25050DFHTA | NPN | SOT-23 | 50V | 5A | 200 | 1.2W | DIODES 📄 PDF |
| ZXTN2031FTA | NPN | SOT-23 | 60V | 2A | 100 | 540mW | onsemi 📄 PDF |
| NSS60201LT1G | NPN | SOT-23 | 60V | 5A | 100 | 1W | DIODES 📄 PDF |
| ZXTN2018FQTA | NPN | SOT-23 | 60V | 5A | 100 | 1.56W | DIODES 📄 PDF |
| ZXTN2018FTA | NPN | SOT-23 | 100V | 2A | 150 | 710mW | onsemi 📄 PDF |
| NSS1C201LT1G | NPN | SOT-23 | 100V | 2.5A | 300 | 1.25W | DIODES 📄 PDF |
| ZXTN25100DFHTA | NPN | SOT-23 | 100V | 3A | 50 | 1.25W | DIODES 📄 PDF |