FMMT458 Transistor Datasheet & Specifications
NPN
SOT-23
General Purpose
Slkor
VCEO
400V
Ic Max
225mA
Pd Max
500mW
hFE Gain
300
Quick Reference
The FMMT458 is a NPN bipolar transistor in a SOT-23 package by Slkor. This datasheet provides complete specifications including 400V breakdown voltage and 225mA continuous collector current. Download the FMMT458 datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | Slkor | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 400V | Breakdown voltage |
| Ic | 225mA | Collector current |
| Pd | 500mW | Power dissipation |
| DC Current Gain | 300 | hFE / Beta |
| Frequency | 50MHz | Transition speed (fT) |
| VCEsat | - | Saturation voltage |
| Vebo | - | Emitter-Base voltage |
| Cutoff Current | - | Leakage (ICBO) |
| Temp | -55℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| FMMT458TA | NPN | SOT-23 | 400V | 225mA | 500mW |
| MMBTA44 | NPN | SOT-23 | 400V | 300mA | 350mW |
| MMBTA44_R1_00001 | NPN | SOT-23 | 400V | 300mA | 225mW |
| FMMT458QTA | NPN | SOT-23 | 400V | 225mA | 500mW |
| FMMT458 | NPN | SOT-23 | 400V | 225mA | 500mW |