FJT44KTF Datasheet & Equivalents
NPN
SOT-223
General Purpose
onsemi
VCEO
400V
Ic Max
300mA
Pd Max
2W
hFE Gain
45
Quick Reference
The FJT44KTF is a NPN bipolar junction transistor in a SOT-223 package, manufactured by onsemi. It supports a breakdown voltage of 400V and continuous collector current of 300mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | onsemi | Original Manufacturer |
| Package | SOT-223 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 400V | Max breakdown voltage |
| Collector Current (Ic) | 300mA | Max current handling |
| Power Dissipation (Pd) | 2W | Max thermal limit |
| DC Current Gain (hFE) | 45 | Base signal amplification ratio |
| Transition Frequency (fT) | - | Max operating frequency |
| Saturation Voltage (VCEsat) | 750mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 6V | Max emitter-base breakdown |
| Collector Cutoff Current | 100nA | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |