FMMT491ATC Transistor Datasheet & Specifications
NPN
SOT-23
General Purpose
DIODES
VCEO
40V
Ic Max
1A
Pd Max
500mW
hFE Gain
200
Quick Reference
The FMMT491ATC is a NPN bipolar transistor in a SOT-23 package by DIODES. This datasheet provides complete specifications including 40V breakdown voltage and 1A continuous collector current. Download the FMMT491ATC datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | DIODES | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 40V | Breakdown voltage |
| Ic | 1A | Collector current |
| Pd | 500mW | Power dissipation |
| DC Current Gain | 200 | hFE / Beta |
| Frequency | 150MHz | Transition speed (fT) |
| VCEsat | 300mV | Saturation voltage |
| Vebo | 7V | Emitter-Base voltage |
| Cutoff Current | 100nA | Leakage (ICBO) |
| Temp | -55℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| ZXTN2020FTA | NPN | SOT-23 | 100V | 4A | 1.2W |
| FMMT491ATA | NPN | SOT-23 | 40V | 1A | 500mW |
| DNBT8105-7 | NPN | SOT-23 | 60V | 1A | 600mW |
| ZXTN2040FTA | NPN | SOT-23 | 40V | 1A | 310mW |
| FMMT493ATA | NPN | SOT-23 | 60V | 1A | 500mW |
| PBSS4350T,215 | NPN | SOT-23 | 50V | 2A | 300mW |
| NSS40201LT1G | NPN | SOT-23 | 40V | 2A | 460mW |
| FMMT491TA | NPN | SOT-23 | 60V | 1A | 500mW |
| ZXTN25100DFHTA | NPN | SOT-23 | 100V | 2.5A | 1.25W |
| NSS1C201LT1G | NPN | SOT-23 | 100V | 2A | 710mW |