IRF840 N-Channel Power MOSFET – TO-220
20.00 EGP
The IRF840 is a high-voltage N-Channel Power MOSFET designed for high voltage and medium current switching applications. With a drain-source voltage rating of 500V and a continuous drain current of 8A, it offers robust switching performance for power supplies, motor drivers, and industrial electronics. Its TO-220 package allows for effective heat dissipation and easy mounting.
Description
✅ Key Features:
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Drain-Source Voltage (Vds): 500V
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Continuous Drain Current (Id): 8A @ 25°C
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RDS(on): 0.85 Ohm (max)
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Gate Threshold Voltage (Vgs(th)): 2.0 – 4.0V
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Total Power Dissipation (Pd): 125W
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Package Type: TO-220
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Fast Switching Speeds
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Low Gate Drive Voltage
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Durable and Rugged Design
🔧 Typical Applications:
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High voltage power supplies
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Motor controllers
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Audio amplifiers
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Industrial load switching
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DIY electronics and hobby projects
📦 Technical Specifications:
| Parameter | Value |
|---|---|
| Type | N-Channel MOSFET |
| Maximum Drain-Source Voltage (Vds) | 500V |
| Maximum Continuous Drain Current (Id) | 8A |
| Maximum RDS(on) | 0.85 Ohm |
| Gate Threshold Voltage (Vgs(th)) | 2.0 – 4.0V |
| Maximum Power Dissipation (Pd) | 125W |
| Package | TO-220 |
⚠️ Note:
Adequate heatsinking is essential for reliable operation under high power conditions.
The IRF840 is an excellent choice for applications requiring high voltage and moderate current with efficient switching performance.















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