IRF644 The IRF644 is an N-Channel power MOSFET from Vishay, rated for 250V drain-source voltage and 14A continuous drain current. It comes in a TO-220AB through-hole package.
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IRF644

Available from 1 distributors
Mfr Name: Vishay
Vishay
The IRF644 is an N-Channel power MOSFET from Vishay, rated for 250V drain-source voltage and 14A continuous drain current. It comes in a TO-220AB through-hole package.
✓ Total Stock: 234 pcs

IRF644 Available from 1 distributor

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IRF644 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

IRF644 Description

Short technical summary and product information.

The IRF644 is a third-generation N-Channel power MOSFET from Vishay, designed for fast switching and rugged operation. It features a maximum drain-source voltage of 250V and continuous drain current of 14A at 25°C (8.5A at 100°C). The on-resistance is typically 280 mΩ at 8.4A and 10V gate drive, with a total gate charge of 68 nC. The device is avalanche rated with single pulse avalanche energy of 550 mJ and repetitive avalanche current of 14A. It also offers dynamic dV/dt capability up to 4.8 V/ns.

 

The MOSFET is housed in a TO-220AB (TO-220-3) through-hole package, suitable for power dissipation up to 125W at 25°C case temperature. It operates over a junction temperature range of -55°C to 150°C. RoHS-compliant versions are available, including lead-free (IRF644PbF) and halogen-free (IRF644PbF-BE3) options.

 

Typical applications include high-voltage switching power supplies, motor control, DC-DC converters, and industrial power systems. The device's fast switching and low on-resistance make it suitable for efficient power management.

IRF644 Quick Information

Product Type: Power MOSFET
Canonical Name: IRF644 N-Channel Power MOSFET
Subcategory: N-Channel MOSFET

IRF644 Compliance

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

IRF644 Features

  • N-Channel MOSFET with 250V drain-source voltage.
  • Continuous drain current rated at 14A.
  • Low on-resistance of 280 mΩ typical.
  • Fast switching with 68 nC gate charge.
  • Avalanche rated for rugged applications.

IRF644 Applications

  • Suitable for high-voltage switching power supplies.
  • Used in motor control and inverter circuits.
  • Ideal for DC-DC converters and battery chargers.
  • Applicable in automotive and industrial systems.

IRF644 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the drain-source voltage rating of the IRF644?

250V maximum.

What package does the IRF644 come in?

TO-220-3 (TO-220AB) through-hole package.

What is the operating temperature range?

-55°C to 150°C (junction).

Is the IRF644 RoHS compliant?

RoHS3 compliant versions are available, including lead-free (IRF644PbF) and halogen-free (IRF644PbF-BE3) options.

What is the continuous drain current at 25°C?

14A.

What is the drain-source on-resistance?

280 mΩ maximum at 8.4A and 10V gate drive.

What is the total gate charge?

68 nC maximum at 10V gate-source voltage.

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