IRF540 | Datasheet, Pinout, Circuit, Specifications onsemi
- FET Type: N-Channel
- Drainto Source Voltage(Vdss): 100 V
- Current-Continuous Drain(Id)@25°C: 28A (Tc)
- Package: TO-220AB

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IRF540 MOSFET Complete Details | Working Principle and Best 5 Equivalent MOSFETs
IRF540 Mosfet Pinout
The IRF540 is a widely used N-channel MOSFET in a TO-220 package, designed for high-speed switching and low on-resistance. Built with ST’s advanced STripFET process, it features reduced input capacitance and gate charge, making it highly efficient for power switching applications. This device is commonly used as a main switch in high-frequency, high-efficiency isolated DC-DC converters, especially in telecom and computing systems. Its low gate drive requirement also makes it ideal for a wide range of low-voltage control applications. The following table provides the detailed IRF540 pinout for proper integration in your circuit design.
Pin Number | Pin Name | Description |
---|---|---|
1 | Gate (G) | Controls the MOSFET switching; voltage applied here turns the device on/off. |
2 | Drain (D) | Current flows into this pin when the MOSFET is conducting. |
3 | Source (S) | Current flows out from this pin; typically connected to ground. |
Understanding the IRF540 pinout is essential for correctly implementing the MOSFET in circuits, especially in applications involving power switching, motor control, or voltage regulation. Always verify pin connections to avoid damage and ensure optimal performance.