- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for IRF840
- Part Number IRF840
- Manufacturer STMicroelectronics
- Pin Count 3
- Part Category MOSFET (N-Channel)
- Package Category Transistor Outline, Vertical
- Footprint Name Transistor Outline, Vertical - IRF840
- Released Date Dec 8, 2021
- Last Modified Date Jan 17, 2025 12:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
IRF840 Details
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Manufacturer Part Number:
IRF840
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Rohs Code:
Yes
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Part Life Cycle Code:
Obsolete
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Part Package Code:
TO-220AB
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Package Description:
TO-220AB, 3 PIN
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Pin Count:
3
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ECCN Code:
EAR99
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HTS Code:
8541.29.00.95
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Manufacturer:
STMicroelectronics
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YTEOL:
0
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Additional Feature:
AVALANCHE RATED
IRF840 Frequently Asked Questions (FAQs)
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The maximum safe operating area (SOA) for the IRF840 is not explicitly stated in the datasheet. However, STMicroelectronics provides a SOA curve in the application note AN440, which shows the maximum allowable drain-source voltage and current combinations for the device.
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To ensure the IRF840 is fully turned on, the gate-source voltage (Vgs) should be at least 10V, and the gate drive voltage should be able to supply sufficient current to charge the gate capacitance quickly. A gate resistor (Rg) of around 10-20 ohms is recommended to limit the gate current.
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The maximum junction temperature (Tj) for the IRF840 is 175°C. However, it's recommended to keep the junction temperature below 150°C for reliable operation and to prevent thermal runaway.
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Yes, the IRF840 can be used in high-frequency switching applications, but it's essential to consider the device's switching characteristics, such as the rise and fall times, and the gate charge. The IRF840 has a relatively high gate charge, which may limit its suitability for very high-frequency applications.
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To protect the IRF840 from electrostatic discharge (ESD), it's recommended to handle the device with an anti-static wrist strap or mat, and to use ESD-protected workstations and tools. Additionally, the device should be stored in an anti-static package or bag when not in use.
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IRF840 Overview
Use the download button to access the IRF840 schematic symbol, PCB footprint, and 3D model.
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About STMicroelectronics
STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components.
STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut
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