MMBT5551-6AF Datasheet & Equivalents
NPN
SOT-23
General Purpose
FOSAN
VCEO
150V
Ic Max
600mA
Pd Max
300mW
hFE Gain
300
Quick Reference
The MMBT5551-6AF is a NPN bipolar junction transistor in a SOT-23 package, manufactured by FOSAN. It supports a breakdown voltage of 150V and continuous collector current of 600mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | FOSAN | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 150V | Max breakdown voltage |
| Collector Current (Ic) | 600mA | Max current handling |
| Power Dissipation (Pd) | 300mW | Max thermal limit |
| DC Current Gain (hFE) | 300 | Base signal amplification ratio |
| Transition Frequency (fT) | 100MHz | 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 |
|---|---|---|---|---|---|---|---|
| FMMT455TA-HXY | NPN | SOT-23 | 150V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT494TA-HXY | NPN | SOT-23 | 150V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT624TA-HXY | NPN | SOT-23 | 150V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT495 | NPN | SOT-23 | 150V | 1A | 300 | 250mW | MSKSEMI 📄 PDF |
| FMMT495 | NPN | SOT-23 | 150V | 1A | 100 | 250mW | JSCJ 📄 PDF |
| FMMT495TA | NPN | SOT-23 | 150V | 1A | 50 | 500mW | DIODES 📄 PDF |
| FMMT495TC | NPN | SOT-23 | 150V | 1A | 50 | 500mW | DIODES 📄 PDF |
| FMMT495 | NPN | SOT-23 | 150V | 1A | 50 | 500mW | DIODES 📄 PDF |
| FMMT625TA | NPN | SOT-23 | 150V | 1A | 30 | 625mW | DIODES 📄 PDF |
| 2L-MMBT5401 | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | GOODWORK 📄 PDF |
| 2N5551S-HXY | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | HXY MOSFET 📄 PDF |
| G1-MMBT5551 | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | GOODWORK 📄 PDF |
| MMBT5551 G1 | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | TDSEMIC 📄 PDF |
| MMBT5551-E | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | MDD(Microdiod... 📄 PDF |
| MMBT5551LT1G-CN | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | ChipNobo 📄 PDF |
| MMBT5551 | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | GOODWORK 📄 PDF |
| MMBT5551 | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | Wild Goose 📄 PDF |
| MMBT5551 | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | MDD(Microdiod... 📄 PDF |
| MMBT5551 | NPN | SOT-23 | 160V | 600mA | 300 | 300mW | MSKSEMI 📄 PDF |
| MMBT5551 | NPN | SOT-23 | 160V | 600mA | 250 | 225mW | XCH 📄 PDF |