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FDB8445 N-Channel Power MOSFET, 40V drain-source voltage, 70A continuous drain current, 9mOhm on-resistance at 10V gate drive. Surface mount D²PAK (TO-263) package.
Mfr Part #:

FDB8445

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
N-Channel Power MOSFET, 40V drain-source voltage, 70A continuous drain current, 9mOhm on-resistance at 10V gate drive. Surface mount D²PAK (TO-263) package.
✓ Total Stock: 9,600 pcs

FDB8445 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
5,600 pcs
On Request
5600 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
4,000 pcs
On Request
4000 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.

FDB8445 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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FDB8445 Description

Short technical summary and product information.

The FDB8445 is an N-Channel power MOSFET from On Semiconductor, designed for high-efficiency power switching applications. It features a maximum drain-to-source voltage of 40V and a continuous drain current rating of 70A at case temperature. The device achieves a low on-resistance of 9mOhm maximum at 70A drain current and 10V gate drive, enabling reduced conduction losses.

 

Gate drive is optimized for 10V operation, with a maximum gate threshold voltage of 4V at 250µA. The total gate charge is 62nC at 10V, and input capacitance is 3805pF at 25V drain-source bias, supporting moderate switching speeds. Maximum power dissipation is 92W at case temperature, and the device can operate over a junction temperature range of -55°C to 175°C.

 

The FDB8445 is housed in a surface-mount TO-263-3 (D²Pak) package with two leads plus tab, also known as D²PAK (TO-263). This package is suitable for automated assembly and provides good thermal performance through the exposed tab. The device is RoHS3 compliant and has an MSL rating of 1 (unlimited).

FDB8445 Quick Information

Product Type: Power MOSFET
Canonical Name: FDB8445 N-Channel Power MOSFET
Subcategory: N-Channel Power MOSFET

FDB8445 Compliance

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

FDB8445 Features

  • N-Channel MOSFET with 40V drain-source rating.
  • 70A continuous drain current capability.
  • Low 9mOhm on-resistance at 10V gate drive.
  • Surface mount D²PAK (TO-263) package.
  • RoHS3 compliant with MSL level 1.

FDB8445 Applications

  • Used in DC-DC converter power stages.
  • Suitable for motor drive circuits.
  • Ideal for load switching applications.
  • Applicable in battery management systems.

FDB8445 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the FDB8445?

40V

What is the continuous drain current rating?

70A at case temperature

What is the on-resistance of the FDB8445?

9mOhm maximum at 70A drain current and 10V gate drive

What package does the FDB8445 come in?

TO-263-3, D²Pak (2 Leads + Tab), TO-263AB; supplier device package D²PAK (TO-263)

What is the operating temperature range?

-55°C to 175°C (junction temperature)

Is the FDB8445 RoHS compliant?

RoHS3 Compliant (unverified)

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