FMMT558TA Datasheet & Equivalents
PNP
SOT-23
General Purpose
DIODES
VCEO
400V
Ic Max
150mA
Pd Max
500mW
hFE Gain
100
Quick Reference
The FMMT558TA is a PNP bipolar junction transistor in a SOT-23 package, manufactured by DIODES. It supports a breakdown voltage of 400V and continuous collector current of 150mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | DIODES | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 400V | Max breakdown voltage |
| Collector Current (Ic) | 150mA | Max current handling |
| Power Dissipation (Pd) | 500mW | Max thermal limit |
| DC Current Gain (hFE) | 100 | Base signal amplification ratio |
| Transition Frequency (fT) | 50MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 500mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 7V | 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 |
|---|---|---|---|---|---|---|---|
| MMBTA94 | PNP | SOT-23 | 400V | 200mA | 80 | 350mW | JSCJ 📄 PDF |
| MMBTA94 | PNP | SOT-23 | 400V | 200mA | 250 | 350mW | ALJ 📄 PDF |
| MMBTA94-6AF | PNP | SOT-23 | 400V | 200mA | 300 | 350mW | FOSAN 📄 PDF |
| MMBTA94-JSM | PNP | SOT-23 | 400V | 200mA | 300 | 350mW | JSMSEMI 📄 PDF |
| MMBTA94 | PNP | SOT-23 | 400V | 200mA | 300 | 350mW | R+O 📄 PDF |
| MMBTA94 | PNP | SOT-23 | 400V | 200mA | 300 | 350mW | HT(Shenzhen J... 📄 PDF |
| MMBTA94 | PNP | SOT-23 | 400V | 200mA | 300 | 350mW | GOODWORK 📄 PDF |
| MMBTA94 | PNP | SOT-23 | 400V | 300mA | 100 | 350mW | PJSEMI 📄 PDF |
| MMBTA94 | PNP | SOT-23 | 400V | 300mA | 80 | 350mW | BLUE ROCKET 📄 PDF |
| PBHV9050T | PNP | SOT-23 | 500V | 150mA | 100 | 300mW | Nexperia 📄 PDF |
| 215 | PNP | SOT-23 | 500V | 150mA | 80 | 500mW | DIODES 📄 PDF |
| FMMT560 | PNP | SOT-23 | 500V | 150mA | 80 | 500mW | DIODES 📄 PDF |
| FMMT560QTA | PNP | SOT-23 | 500V | 150mA | 80 | 500mW | DIODES 📄 PDF |
| FMMT560TA | PNP | SOT-23 | 500V | 150mA | 80 | 500mW | DIODES 📄 PDF |