FMMT491 Datasheet & Equivalents
NPN
SOT-23
General Purpose
Huixin
VCEO
60V
Ic Max
1A
Pd Max
250mW
hFE Gain
-
Quick Reference
The FMMT491 is a NPN bipolar junction transistor in a SOT-23 package, manufactured by Huixin. It supports a breakdown voltage of 60V and continuous collector current of 1A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | Huixin | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 60V | Max breakdown voltage |
| Collector Current (Ic) | 1A | Max current handling |
| Power Dissipation (Pd) | 250mW | Max thermal limit |
| DC Current Gain (hFE) | - | Base signal amplification ratio |
| Transition Frequency (fT) | 150MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 500mV@1000mA,100mA | 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 |
|---|---|---|---|---|---|---|---|
| 2PD602AQL-HXY | NPN | SOT-23 | 60V | 1A | 30 | 250mW | HXY MOSFET 📄 PDF |
| DNBT8105-7 | NPN | SOT-23 | 60V | 1A | 80 | 600mW | DIODES 📄 PDF |
| FMMT491QTA | NPN | SOT-23 | 60V | 1A | 80 | 500mW | DIODES 📄 PDF |
| FMMT491TA | NPN | SOT-23 | 60V | 1A | 80 | 500mW | DIODES 📄 PDF |
| FMMT491TC | NPN | SOT-23 | 60V | 1A | 80 | 500mW | DIODES 📄 PDF |
| HFMMT491QTA | NPN | SOT-23 | 60V | 1A | 80 | 250mW | HXY MOSFET 📄 PDF |
| FMMT491-TP | NPN | SOT-23 | 60V | 1A | 100 | 500mW | MCC 📄 PDF |
| ZXTN2038FTA | NPN | SOT-23 | 60V | 1A | 100 | 350mW | DIODES 📄 PDF |
| FMMT591 | NPN | SOT-23 | 60V | 1A | 100 | 250mW | YFW 📄 PDF |
| MMBT1616AG-G-AE3-R | NPN | SOT-23 | 60V | 1A | 200 | 350mW | UTC 📄 PDF |
| PBSS4160T | NPN | SOT-23 | 60V | 1A | 250 | 1.25W | Nexperia 📄 PDF |
| 215 | NPN | SOT-23 | 60V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| CMPT3820-HXY | NPN | SOT-23 | 60V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| DNBT8105-7-HXY | NPN | SOT-23 | 60V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| DSS4160TQ-7-HXY | NPN | SOT-23 | 60V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT451TA-HXY | NPN | SOT-23 | 60V | 1A | 300 | 250mW | JSCJ 📄 PDF |
| FMMT491(RANGE:100-300) | NPN | SOT-23 | 60V | 1A | 300 | 250mW | FOSAN 📄 PDF |
| FMMT491-6AF | NPN | SOT-23 | 60V | 1A | 300 | 500mW | DIODES 📄 PDF |
| FMMT493ATA | NPN | SOT-23 | 60V | 1A | 300 | 500mW | NH 📄 PDF |
| NH491 | NPN | SOT-23 | 60V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |