FMMT491 Datasheet & Equivalents
NPN
SOT-23
General Purpose
Shikues
VCEO
25V
Ic Max
1A
Pd Max
300mW
hFE Gain
200
Quick Reference
The FMMT491 is a NPN bipolar junction transistor in a SOT-23 package, manufactured by Shikues. It supports a breakdown voltage of 25V and continuous collector current of 1A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | Shikues | 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) | 1A | Max current handling |
| Power Dissipation (Pd) | 300mW | Max thermal limit |
| DC Current Gain (hFE) | 200 | Base signal amplification ratio |
| Transition Frequency (fT) | 100MHz | 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 |
|---|---|---|---|---|---|---|---|
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 200 | 300mW | TWGMC 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 200 | 300mW | XZT 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 200 | 225mW | AnBon 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 200 | 250mW | Guangdong Hot... 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 200 | 350mW | Shikues 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 200 | 300mW | YFW 📄 PDF |
| SS8050(RANGE:200-350) | NPN | SOT-23 | 25V | 1.5A | 200 | 300mW | JSCJ 📄 PDF |
| MMBT8050D(1.5A)-Y1 | NPN | SOT-23 | 25V | 1.5A | 160 | 200mW | ST(Semtech) 📄 PDF |
| MPS8050S-D-RTK/P | NPN | SOT-23 | 25V | 1.5A | 160 | 350mW | KEC 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 260 | 300mW | LGE 📄 PDF |
| MMSS8050-H-TP | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | MCC 📄 PDF |
| MMSS8050-L-TP | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | MCC 📄 PDF |
| SS8050 200-350 | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | DOWO 📄 PDF |
| SS8050-G(RANGE:120-200) | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | JSCJ 📄 PDF |
| SS8050-HQ | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | YANGJIE 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | R+O 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | Jingdao Micro... 📄 PDF |
| SS8050 | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | BORN 📄 PDF |
| SS8050 Y1 | NPN | SOT-23 | 25V | 1.5A | 120 | 300mW | JUXING 📄 PDF |
| L8050HQLT1G | NPN | SOT-23 | 25V | 1.5A | 300 | 225mW | LRC 📄 PDF |