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Vishay IRF840PBF Power MOSFET

The IRF840PBF is a 500V N-channel power MOSFET designed with third-generation technology for reliable power switching. It offers fast switching, low on-resistance, and rugged construction suitable for industrial power management, inverter circuits, and switching power supplies. The device features a dynamic dV/dt rating, is avalanche rated for repetitive operations, and operates at temperatures up to 175°C. Packaged in TO-220AB, it ensures easy mounting and heat dissipation—ideal for high-power applications requiring efficiency and durability.

Authorized Distributors
Source:Newark
Part No:IRF840PBF
Stock:240
Inv Date:06-09-2026
Price: Unit price: $3.09
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Source:DigiKey
Part No:IRF840PBF
Stock:8885
Inv Date:06-09-2026
Price: Unit price: $4.57
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Part No:IRF840PBF
Stock:1154
Inv Date:06-10-2026
Price: Unit price: $2.62
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Part No:IRF840PBF
Stock:0
Inv Date:06-10-2026
Price: N/A
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Part No:IRF840PBF
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2.48
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Part No:IRF840PBF
Stock:636
Inv Date:06-09-2026
Price: Unit price: $2.67
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Part No:IRF840PBF
Stock:25693
Inv Date:06-09-2026
Price: Unit price: $0.735
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Source:Arrow EU
Part No:IRF840PBF
Stock:486000
Inv Date:06-10-2026
Price: N/A
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Part No:IRF840PBF
Stock:645
Inv Date:06-10-2026
Price: N/A
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Vishay IRF840PBF Power MOSFET Specifications:

  • Drain-Source Voltage: 500 V
  • Gate-Source Voltage: ±20 V
  • Continuous Drain Current at 25°C: 54 A
  • Pulsed Drain Current: 32 A
  • Maximum Power Dissipation: 125 W
  • Maximum Junction Temperature: 175°C
  • Thermal Resistance, Junction-to-Ambient: 62 °C/W
  • Thermal Resistance, Case-to-Sink: 0.50 °C/W
  • Switching Time Rise Time: 23 ns
  • Fall Time: 20 ns
  • Gate Charge: 63 nC
  • Drain-Source On-Resistance: 0.085 Ω
  • Repetitive Avalanche Energy: 13 mJ
  • Body Diode Forward Voltage: 20 V at 8 A

Buy the Vishay IRF840 U–2013 Reliable Power MOSFET for Industrial Applications

Discover the efficient performance of the Vishay IRF840 power MOSFET, a 500V N-channel device with low on-resistance and fast switching capabilities. Perfect for industrial power supplies, inverter circuits, and switching applications, it features rugged design, simple drive requirements, and high maximum operating temperature of 175°C. Its TO-220AB package ensures ease of mounting and excellent heat dissipation. Invest in this high-quality MOSFET today to enhance your power management system's reliability and efficiency while benefiting from Vishay's proven technology.

Buy Vishay IRF840 now and experience unmatched reliability and performance in high-power switching applications.

Frequently Asked Questions

Where can I buy Vishay IRF840PBF?

You can click on the BUY or RFQ button to purchase IRF840PBF from an authorized Vishay distributor.

How do I troubleshoot issues or seek technical support for part IRF840PBF?

You can download the IRF840PBF datasheet or visit the Vishay website for support.

Who is the manufacturer of IRF840PBF?

Vishay

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