MMBTSD123 Datasheet & Equivalents
NPN
SOT-23
General Purpose
YFW
VCEO
15V
Ic Max
1A
Pd Max
200mW
hFE Gain
150
Quick Reference
The MMBTSD123 is a NPN bipolar junction transistor in a SOT-23 package, manufactured by YFW. It supports a breakdown voltage of 15V and continuous collector current of 1A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | YFW | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 15V | Max breakdown voltage |
| Collector Current (Ic) | 1A | Max current handling |
| Power Dissipation (Pd) | 200mW | Max thermal limit |
| DC Current Gain (hFE) | 150 | Base signal amplification ratio |
| Transition Frequency (fT) | 260MHz | 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 |
|---|---|---|---|---|---|---|---|
| 2STR1215 | NPN | SOT-23 | 15V | 1.5A | 200 | 500mW | ST 📄 PDF |
| M28S(RANGE:650-1000) | NPN | SOT-23 | 20V | 1A | 300 | 200mW | JSCJ 📄 PDF |
| PBSS4120T | NPN | SOT-23 | 20V | 1A | 300 | 480mW | Nexperia 📄 PDF |
| 215 | NPN | SOT-23 | 20V | 1.5A | 200 | 625mW | Shikues 📄 PDF |
| FMMT618 | NPN | SOT-23 | 20V | 1.5A | 400 | 300mW | FOSAN 📄 PDF |
| SS8050 | NPN | SOT-23 | 20V | 2A | 200 | 540mW | onsemi 📄 PDF |
| NSS20201LT1G | NPN | SOT-23 | 20V | 2A | 220 | 600mW | DIODES 📄 PDF |
| DSS4320T-7 | NPN | SOT-23 | 20V | 2A | 220 | 540mW | Nexperia 📄 PDF |
| PBSS4320T | NPN | SOT-23 | 20V | 2.5A | 200 | 625mW | DIODES 📄 PDF |
| 215 | NPN | SOT-23 | 20V | 2.5A | 200 | 625mW | DIODES 📄 PDF |
| FMMT618QTA | NPN | SOT-23 | 20V | 2.5A | 200 | 625mW | DIODES 📄 PDF |
| FMMT618TA | NPN | SOT-23 | 20V | 2.5A | 200 | 350mW | JSCJ 📄 PDF |
| ZXT11N20DFTA | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | JSMSEMI 📄 PDF |
| FMMT618 | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | MCC 📄 PDF |
| FMMT618-JSM | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | HXY MOSFET 📄 PDF |
| FMMT618-TP | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | HXY MOSFET 📄 PDF |
| HFMMT618TA | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | HXY MOSFET 📄 PDF |
| PBSS4320T-HXY | NPN | SOT-23 | 25V | 1A | 200 | 300mW | Shikues 📄 PDF |
| FMMT618 | NPN | SOT-23 | 25V | 1.5A | 160 | 200mW | ST(Semtech) 📄 PDF |
| FMMT491 | NPN | SOT-23 | 25V | 1.5A | 160 | 350mW | KEC 📄 PDF |