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FDA8440 FDA8440 is an N-Channel MOSFET from On Semiconductor with 40V drain-source voltage, 100A continuous drain current, and 2.1mOhm on-resistance. It is housed in a through-hole TO-3PN package.
Mfr Part #:

FDA8440

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
FDA8440 is an N-Channel MOSFET from On Semiconductor with 40V drain-source voltage, 100A continuous drain current, and 2.1mOhm on-resistance. It is housed in a through-hole TO-3PN package.
✓ Total Stock: 33,225 pcs

FDA8440 Available from 1 distributor

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FDA8440 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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FDA8440 Description

Short technical summary and product information.

The FDA8440 is an N-Channel MOSFET designed by On Semiconductor for high-current switching applications. It features a drain-source voltage rating of 40V and a maximum continuous drain current of 100A at case temperature (Tc=25°C) or 30A at ambient temperature (Ta=25°C). The device offers a low drain-source on-resistance of 2.1mOhm (maximum at 80A, 10V gate drive), enabling high efficiency in power conversion circuits.

 

Key electrical characteristics include a maximum input capacitance of 24740pF at Vds=25V and a gate charge of 450nC at Vgs=10V, which inform switching performance. The gate threshold voltage is 3V maximum at Id=250µA, and the gate-source voltage rating is ±20V. The power dissipation is rated at 306W maximum at Tc=25°C, with an operating junction temperature range of -55°C to 175°C.

 

The MOSFET is supplied in a through-hole TO-3P-3 / SC-65-3 package, with the supplier device package designated as TO-3PN. This package is suitable for applications requiring robust heat dissipation and mechanical mounting. The device is marked as RoHS3 compliant (unverified), MSL level 1 unlimited, and REACH unaffected.

FDA8440 Quick Information

Product Type: MOSFET
Canonical Name: FDA8440 N-Channel MOSFET
Subcategory: N-Channel MOSFET

FDA8440 Compliance

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

FDA8440 Features

  • N-Channel MOSFET with 40V drain-source voltage rating.
  • Low on-resistance of 2.1mOhm for high efficiency.
  • High current capability up to 100A at case temperature.
  • Through-hole TO-3PN package for easy mounting.
  • Wide operating temperature range from -55°C to 175°C.

FDA8440 Applications

  • Used in power supply switching circuits.
  • Suitable for motor control applications.
  • Ideal for DC-DC converter designs.
  • High efficiency in battery management systems.

FDA8440 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the drain-source voltage rating of the FDA8440?

40V.

What is the maximum drain current of the FDA8440?

100A at case temperature (Tc=25°C) and 30A at ambient temperature (Ta=25°C).

What is the on-resistance of the FDA8440?

2.1mOhm maximum at Id=80A and Vgs=10V.

What package does the FDA8440 come in?

The part is supplied in a through-hole TO-3P-3 / SC-65-3 package, with the supplier device package TO-3PN.

What is the operating temperature range of the FDA8440?

-55°C to 175°C (junction temperature).

Is the FDA8440 RoHS compliant?

The data indicates RoHS3 compliant, but this has not been verified (low confidence).

What is the gate charge of the FDA8440?

450nC maximum at Vgs=10V.

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