FMMT591-JSM Datasheet & Equivalents
PNP
SOT-23
General Purpose
JSMSEMI
VCEO
25V
Ic Max
1.8A
Pd Max
300mW
hFE Gain
350
Quick Reference
The FMMT591-JSM is a PNP bipolar junction transistor in a SOT-23 package, manufactured by JSMSEMI. It supports a breakdown voltage of 25V and continuous collector current of 1.8A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | JSMSEMI | 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) | 1.8A | Max current handling |
| Power Dissipation (Pd) | 300mW | Max thermal limit |
| DC Current Gain (hFE) | 350 | Base signal amplification ratio |
| Transition Frequency (fT) | - | Max operating frequency |
| Saturation Voltage (VCEsat) | 500mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 100nA | Leakage current when OFF |
| Operating Temp | - | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| B772S | PNP | SOT-23 | 30V | 3A | 400 | 1W | Shikues 📄 PDF |
| DSS5240T-7 | PNP | SOT-23 | 40V | 2A | 300 | 730mW | DIODES 📄 PDF |
| PBSS5240T | PNP | SOT-23 | 40V | 2A | 210 | 480mW | Nexperia 📄 PDF |
| 215 | PNP | SOT-23 | 40V | 2A | 210 | 730mW | DIODES 📄 PDF |
| ZXTP5240F-7 | PNP | SOT-23 | 40V | 2A | 150 | 540mW | onsemi 📄 PDF |
| NSV40200LT1G | PNP | SOT-23 | 40V | 2A | 100 | 730mW | DIODES 📄 PDF |
| DSS5240TQ-7 | PNP | SOT-23 | 40V | 2A | 100 | 300mW | LRC 📄 PDF |
| LBSS5240LT1G | PNP | SOT-23 | 40V | 2A | - | 300mW | GOODWORK |
| PBSS5240 | PNP | SOT-23 | 40V | 3A | 300 | 1.25W | DIODES 📄 PDF |
| ZXTP25040DFHTA | PNP | SOT-23 | 40V | 3A | 200 | 1.25W | DIODES 📄 PDF |
| ZXTP25040DFH | PNP | SOT-23 | 50V | 2A | 200 | 1.2W | JSMSEMI 📄 PDF |
| PBSS5350T | PNP | SOT-23 | 50V | 2A | - | 300mW | GOODWORK 📄 PDF |
| 215-JSM | PNP | SOT-23 | 60V | 2A | 150 | 540mW | onsemi 📄 PDF |
| PBSS5350T-GK | PNP | SOT-23 | 60V | 3A | 75 | 1.25W | DIODES 📄 PDF |