MMBT4124LT1G Datasheet & Equivalents
NPN
SOT-23
General Purpose
onsemi
VCEO
25V
Ic Max
200mA
Pd Max
225mW
hFE Gain
120
Quick Reference
The MMBT4124LT1G is a NPN bipolar junction transistor in a SOT-23 package, manufactured by onsemi. It supports a breakdown voltage of 25V and continuous collector current of 200mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | onsemi | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 25V | Max breakdown voltage |
| Collector Current (Ic) | 200mA | Max current handling |
| Power Dissipation (Pd) | 225mW | Max thermal limit |
| DC Current Gain (hFE) | 120 | Base signal amplification ratio |
| Transition Frequency (fT) | 300MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 300mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | - | Max emitter-base breakdown |
| Collector Cutoff Current | 50nA | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| S8050-J3Y | NPN | SOT-23 | 25V | 300mA | 350 | 300mW | JSMSEMI 📄 PDF |
| MMS8050-H-TP | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | MCC 📄 PDF |
| S8050(0.5A) | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | EIC 📄 PDF |
| S8050(RANGE:120-200) | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | JSCJ 📄 PDF |
| S8050-HQ | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | RUILON 📄 PDF |
| S9013 J3(RANGE:200-350) | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | JSCJ 📄 PDF |
| S9013(RANGE:120-200) | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | JSCJ 📄 PDF |
| S8050 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | R+O 📄 PDF |
| S8050 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | BORN 📄 PDF |
| S8050 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | Jingdao Micro... 📄 PDF |
| S8050 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | HXY MOSFET 📄 PDF |
| S8050 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | Shikues 📄 PDF |
| S8050 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | JUXING 📄 PDF |
| S9013 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | R+O 📄 PDF |
| S9013 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | TWGMC 📄 PDF |
| S9013 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | UMW 📄 PDF |
| S9013 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | BORN 📄 PDF |
| S9013 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | HXY MOSFET 📄 PDF |
| S9013 | NPN | SOT-23 | 25V | 500mA | 120 | 300mW | luJing 📄 PDF |
| S8050 J3Y(RANGE:200-350) | NPN | SOT-23 | 25V | 500mA | 200 | 300mW | JSCJ 📄 PDF |