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You are here: Home / Datasheets and Components / IRF640 Datasheet [200V, 18 Amp N-Channel MOSFET]

IRF640 Datasheet [200V, 18 Amp N-Channel MOSFET]

Last Updated on February 27, 2023 by Swagatam 8 Comments

IRF640 is a N-channel Power MOSFET designed for applications such as switch mode power supplies (SMPS), DC-DC converters, motor control, and general purpose switching.

Table of Contents
  • Pinout Configuration
  • Electrical Characteristics:
  • Thermal Characteristics:
  • Mechanical Characteristics:
  • Package Information:
  • Applications
  • Making a 12V to 110V Boost Converter Circuit

Here is the complete datasheet for the IRF640:

Pinout Configuration

The pinout configuration of the MOSFET IRF640 is as given in the following diagram.

IRF640 mosfet pin configuration datasheet

Electrical Characteristics:

  • Drain-Source Voltage (Vds): 200V
  • Continuous Drain Current (Id): 18A
  • Pulsed Drain Current (Idm): 72A
  • Gate-Source Voltage (Vgs): +/- 20V
  • Continuous Source Current (Is): 18A
  • Total Power Dissipation (Pd): 150W
  • Avalanche Energy (Eas): 170mJ
  • Avalanche Current (Iar): 18A
  • Threshold Voltage (Vth): 4V - 5V
  • Input Capacitance (Ciss): 1500pF
  • Output Capacitance (Coss): 500pF
  • Reverse Transfer Capacitance (Crss): 250pF

Thermal Characteristics:

  • Operating Junction Temperature (Tj): -55°C to 175°C
  • Storage Temperature (Tstg): -55°C to 175°C
  • Thermal Resistance, Junction-to-Case (RθJC): 1.25°C/W
  • Thermal Resistance, Junction-to-Ambient (RθJA): 62.5°C/W

Mechanical Characteristics:

  • Lead Temperature (TL): 300°C (soldering, 10 seconds)
  • Mounting torque: 1.1 Nm (10 lbf-in)

Package Information:

  • TO-220AB package with through-hole mounting

Applications

SMPS: The IRF640 can be utilised in SMPS for applications requiring voltage control and power conversion.

DC to DC Converters: MOSFETs are used in DC-DC converters to transfer electricity from one voltage level to another in an effective manner.

Motor Control: Applications involving the speed and direction control of DC motors and stepper motors are also carried out using the IRF640.

Audio Power Amplifiers: The MOSFET may be utilized as an output device to regulate the current flowing through the load in audio power amplifiers.

Lighting: Light-emitting diodes (LEDs), LED drivers, and high-intensity discharge (HID) lamps are some examples of lighting applications for the IRF640.

Solar Controller: IRF640 MOSFET can be utilized in solar power systems for voltage and current regulation as well as power conversion.

High Voltage Switch: Many applications requiring high current and voltage ratings can use the IRF640 as a general-purpose switch.

Making a 12V to 110V Boost Converter Circuit

The IRF640 MOSFET can be effectively used for making a 12V to 110V boost converter circuit as shown in the following diagram.

110V boost converter using IRF640
NOTE: Please make sure to replace the 24V zener diode with a 110V zener diode

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Filed Under: Datasheets and Components Tagged With: 200V, Channel, Datasheet, IRF640, MOSFET

About Swagatam

I am an electronics engineer and doing practical hands-on work from more than 15 years now. Building real circuits, testing them and also making PCB layouts by myself. I really love doing all these things like inventing something new, designing electronics and also helping other people like hobby guys who want to make their own cool circuits at home.

And that is the main reason why I started this website homemade-circuits.com, to share different types of circuit ideas..

If you are having any kind of doubt or question related to circuits then just write down your question in the comment box below, I am like always checking, so I guarantee I will reply you for sure!

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Reader Interactions

Comments

  1. obrien emmanuel chansa says

    September 21, 2024 at 11:19 pm

    I want to make an inverter with a Irf640, with a low pas filter on the output, would you help me with a schematic. chansa from Zambia.

    Reply
    • Swagatam says

      September 22, 2024 at 8:25 am

      Please provide the battery, load and waveform specifications of the inverter, i will try to help!

      Reply
  2. Wiseman says

    July 27, 2024 at 4:38 am

    Howsit man
    I’m curious and eager to know if I can make a voltage regulator using mp1620 and a irf620n mosfet, can you please guide me through the steps if possible. Thanks

    Reply
    • Swagatam says

      July 27, 2024 at 10:24 am

      Hi Wiseman,
      Sure, you can certainly make a voltage regulator using IRF620 MOSFET. You can try the following configuration, and replace the MOSFET accordingly.
      " rel="ugc">comment image
      Please remember the input voltage must not exceed 150V, and the entire circuit is not isolated from the input high voltage, so be extremely careful…

      Reply
  3. Shabbir says

    May 14, 2024 at 7:55 am

    Sir , specifications of how to design induction coil IC irs2453. .

    Reply
    • Swagatam says

      May 14, 2024 at 8:54 am

      Hello Shabbir, i do not have this circuit with me at the moment, so i am unable to provide you any help regarding this topic.

      Reply
  4. A.G.Suresh Babu says

    December 7, 2023 at 9:30 pm

    Dear Swagatham, is the current limited to the rating of zener diode or that of mosfet ?

    Reply
    • Swagatam says

      December 8, 2023 at 8:42 am

      Dear Suresh,
      The maximum output current is determined by the MOSFET rating, the zener diode decides the maximum output voltage.

      Reply

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