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FDH44N50 The FDH44N50 is a 500V, 44A N-Channel power MOSFET from On Semiconductor's UniFET family. It features a low on-resistance of 120mOhm and is housed in a TO-247-3 package.
Mfr Part #:

FDH44N50

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The FDH44N50 is a 500V, 44A N-Channel power MOSFET from On Semiconductor's UniFET family. It features a low on-resistance of 120mOhm and is housed in a TO-247-3 package.
✓ Total Stock: 9,965 pcs
$ Price Range: $6.40 - $10.74

FDH44N50 Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
5,245 pcs
On Request
5245 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,250 pcs
On Request
3250 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
1,470 pcs
On Request
1470 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

FDH44N50 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Drain to Source Voltage (Vdss)
Drive Voltage (Max Rds On, Min Rds On)
FET Type
Gate Charge (Qg) (Max) @ Vgs
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Supplier Device Package
Tape & Reel
Technology
Vgs (Max)
Vgs(th) (Max) @ Id
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FDH44N50 Description

Short technical summary and product information.

The FDH44N50 is an N-Channel power MOSFET manufactured by On Semiconductor (onsemi), part of the UniFET family. It is designed for high-voltage switching applications with a drain-to-source voltage rating of 500V and a continuous drain current of 44A at 25°C case temperature. The device features a maximum on-resistance of 120mOhm at VGS = 10V and ID = 22A, ensuring efficient power conduction.

 

This MOSFET offers a typical gate charge of 90nC and a maximum of 108nC at VGS = 10V, enabling simplified drive requirements. The input capacitance is 5335pF maximum at VDS = 25V. The device is rated for a junction temperature range of -55°C to 175°C and has a maximum power dissipation of 750W at 25°C case temperature.

 

The FDH44N50 is supplied in a TO-247-3 through-hole package, suitable for mounting on heatsinks in power converter designs. The device is RoHS compliant and lead-free, meeting environmental standards for electronic equipment.

FDH44N50 Quick Information

Product Type: Power MOSFET
Series: UniFET
Canonical Name: FDH44N50 N-Channel Power MOSFET, 500V, 44A, TO-247-3
Subcategory: Single MOSFETs

FDH44N50 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free

FDH44N50 Estimated Pricing

Qty Low High
1+ $10.74 $10.74
10+ $6.40 $6.40

Estimated market price range - modelled values for guidance only, not live distributor offers.

FDH44N50 Features

  • N-Channel MOSFET with 500V drain-source voltage.
  • 44A continuous drain current at 25°C case temperature.
  • Low on-resistance of 120mOhm at 10V gate drive.
  • Typical gate charge of 90nC simplifies driving.
  • RoHS compliant and lead-free construction.

FDH44N50 Applications

  • Suitable for power factor correction (PFC) circuits.
  • Used in ATX and flat panel display power supplies.
  • Ideal for electronic lamp ballasts.
  • Applicable in uninterruptible power supplies (UPS).
  • Designed for AC-DC switching power converters.

FDH44N50 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the FDH44N50?

The maximum drain-source voltage (Vdss) is 500V.

What is the package type of the FDH44N50?

The FDH44N50 is packaged in a TO-247-3 through-hole case.

What is the operating temperature range of the FDH44N50?

The junction temperature operating range is -55°C to 175°C.

Is the FDH44N50 RoHS compliant?

Yes, the FDH44N50 is RoHS3 compliant and Pb-Free as stated in the datasheet.

What is the maximum continuous drain current of the FDH44N50?

The maximum continuous drain current is 44A at 25°C case temperature and 32A at 100°C case temperature, with VGS = 10V.

What is the maximum on-resistance of the FDH44N50?

The maximum drain-source on-resistance is 120mOhm at VGS = 10V and ID = 22A.

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