IXFN44N50
500 V / 44 A IXYS HiPerFET N-channel power MOSFET in SOT-227B for supplies, PFC and inverters.
The IXFN44N50 is a 500 V / 44 A IXYS N-channel enhancement-mode power MOSFET from the HiPerFET family, in the isolated SOT-227B package. A power MOSFET turns on with a simple voltage drive, so the gate circuit is far easier than a bipolar device, and its fast, avalanche-rated body diode allows the switch to freewheel cleanly in a bridge. The HiPerFET process combines low on-resistance with fast switching and ruggedness, and the isolated SOT-227B package mounts with screws on a common heatsink without an extra insulating layer, which simplifies the mechanical design in high-power converters. The 500 V class suits converters fed from a 220 V AC line or a low-voltage DC bus, and the 44 A rating covers switch-mode power supplies, power-factor-correction stages, inverters, motor drives and welding equipment. Every device is factory-traceable and ships with import declaration, certificate of origin and RoHS documentation. Designers should confirm the gate drive, the switching speed and the thermal path for their circuit. BeiLuo holds this device in stock and our FAE team supports selection, gate-drive and thermal design.
FAE Professional Review
The IXFN44N50 is a workhorse 500 V HiPerFET in the isolated SOT-227B package, which makes multi-device heatsinking simple. It is rugged, fast and easy to drive with a voltage gate. It suits supplies, PFC and inverters that run from a 220 V class line, and the avalanche-rated body diode handles the freewheeling path well.
| Parameter | Value |
|---|---|
| VDSS (V) | 500 V |
| ID (A) | 44 A |
| Package | SOT-227B |
| Series | HiPerFET |
| Type | N-channel enhancement |
Application Circuits
Switch-mode supplies
Reference circuits and application schematics for Switch-mode supplies are available from our FAE team.
Power factor correction
Reference circuits and application schematics for Power factor correction are available from our FAE team.
Motor drives and inverters
Reference circuits and application schematics for Motor drives and inverters are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| IXGH38N60 | TO-247AD | IGBT for a higher-current or higher-voltage stage | View |
| DSEI60-06A | TO-247AD | Fast recovery diode for the freewheeling path | View |
Recommended Complementary Products
Frequently Asked Questions
What projects suit the IXFN44N50?
It fits 500 V converters such as switch-mode supplies, power-factor-correction stages, inverters and welding equipment that run from a 220 V AC line or a low-voltage bus. The 44 A rating covers most of this class with margin.
For a higher bus, step up to the IXFN44N80.
Why choose the SOT-227B package?
The SOT-227B is an isolated, screw-mountable package with a large thermal pad, so several devices can share a heatsink without an extra insulating layer. That simplifies assembly and improves heat transfer in high-power converters.
It is common in supplies, inverters and welding equipment.
Is the device genuine and in stock?
BeiLuo supplies factory-traceable IXFN44N50 devices through IXYS's authorized channel, with import declaration, certificate of origin and RoHS files on every order. Stock is normally available.
Request a sample for bench validation.