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FDB8443 FDB8443 is an N-Channel MOSFET by ON Semiconductor with 40V drain-source voltage and up to 120A continuous drain current.
Mfr Part #:

FDB8443

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
FDB8443 is an N-Channel MOSFET by ON Semiconductor with 40V drain-source voltage and up to 120A continuous drain current.
✓ Total Stock: 1,712 pcs

FDB8443 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
1,712 pcs
On Request
1712 pcs On Request 1 On Request On Request 12+ On Request On Request
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FDB8443 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
Technology
Vgs (Max)
Vgs(th) (Max) @ Id
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FDB8443 Description

Short technical summary and product information.

The FDB8443 is an N-Channel MOSFET from ON Semiconductor, designed for high-current switching applications.

 

This device features a maximum drain-to-source voltage of 40 V and a continuous drain current rating of 120 A at case temperature, with a low maximum on-resistance of 3 mOhm at 10 V gate drive.

 

The MOSFET is housed in a surface-mount TO-263-3 (D²Pak) package, providing efficient thermal performance with a maximum power dissipation of 188 W.

 

Typical applications include power management circuits, DC-DC converters, and motor control systems where high efficiency and reliability are required.

FDB8443 Quick Information

Product Type: MOSFET
Canonical Name: FDB8443 N-Channel MOSFET
Subcategory: Single N-Channel

FDB8443 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FDB8443 Features

  • N-Channel MOSFET with 40 V drain-source voltage.
  • 120 A continuous drain current at case temperature.
  • Low on-resistance of 3 mOhm at 10 V gate drive.
  • Surface mount D²Pak (TO-263) package.

FDB8443 Applications

  • Power management in DC-DC converter circuits.
  • Motor control and high-current switching applications.
  • Load switching and power distribution systems.

FDB8443 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the FDB8443?

40 V.

What is the continuous drain current rating of the FDB8443?

120 A at case temperature (Tc), or 25 A at ambient temperature (Ta).

What is the on-resistance of the FDB8443?

Maximum 3 mOhm at Vgs=10 V and Id=80 A.

What package is the FDB8443 available in?

TO-263-3 (D²Pak), surface mount.

What is the operating temperature range?

-55°C to 175°C (junction).

Is the FDB8443 RoHS compliant?

RoHS3 compliant per existing records (unverified).

What is the maximum gate charge of the FDB8443?

185 nC at Vgs=10 V.

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