IRFP240 N-Channel 20A 200V Power MOSFET TO-247

IRFP240 N-Channel 20A 200V Power MOSFET (TO-247) is a rugged device engineered for high-current and medium-voltage switching. Designers frequently select it for power amplifiers, switch-mode power supplies, and motor drive systems where efficiency and thermal stability matter most.

Key Features:

• 200 V Drain-Source Voltage: Handles medium-voltage switching across industrial and consumer systems.
• 20 A Continuous Current: Supports high-current loads with proper heatsinking.
• Low On-Resistance: Typical R_DS(on) values ensure reduced conduction losses.
• TO-247 Package: Provides robust construction and efficient heat transfer to external heatsinks.
• Fast Switching Capability: Optimized for high-frequency operation with low gate charge.
• Reliable Avalanche Energy Rating: Designed to withstand demanding pulse and surge conditions.

Technical Specifications:

• Drain-Source Voltage (V_DSS): 200 V
• Continuous Drain Current (I_D): 20 A at 25 °C
• Pulsed Drain Current (I_D,pulse): Up to 80 A
• On-Resistance (R_DS(on)): ~0.18 Ω typical at V_GS = 10 V
• Gate Threshold Voltage (V_GS(th)): 2.0–4.0 V
• Total Gate Charge (Q_g): Approximately 67 nC
• Power Dissipation (P_D): 150 W (max at TC = 25 °C)
• Operating Junction Temperature: −55 °C to +150 °C

Mechanical Specifications:

• Package: TO-247, 3-lead through-hole type
• Mounting Style: Through-hole with screwable heatsink tab
• Lead Finish: Tin-plated copper for reliable soldering
• Encapsulation: Molded epoxy for mechanical strength and insulation

Dimensions:

• Overall Height: ~20.0 mm
• Body Width: ~15.6 mm
• Lead Pitch: 5.45 mm typical between adjacent pins
• Tab Thickness: ~4.8 mm

Pinout and Wiring:

• Pin 1: Gate – controls MOSFET conduction when driven by logic or driver IC
• Pin 2: Drain – connected to the high-voltage supply or load
• Pin 3: Source – tied to ground or return path
• Tab: Internally connected to the drain for efficient heat transfer
• Wiring Note: Include a gate resistor to control switching speed, and use a freewheeling diode for inductive loads.

Datasheet Reference:

• Download the official IRFP240 datasheet from Infineon (formerly International Rectifier) for detailed electrical curves, thermal limits, and design guidelines.

Applications:

• Audio Amplifiers: Commonly used in high-fidelity Class AB and Class D amplifier output stages.
• Switch-Mode Power Supplies (SMPS): Suitable for medium-voltage power conversion.
• Motor Drivers: Provides efficient control in industrial and consumer motor applications.
• DC-DC Converters: Reliable choice for power conditioning and inverter circuits.

Equivalent Models:

• IRFP250: Higher current capacity version in the same package.
• IRFP260: Offers 50 A handling with a 200 V rating.
• STP20N20: Similar N-channel MOSFET from STMicroelectronics.

Package Includes:

• 1 x IRFP240 N-Channel 20A 200V Power MOSFET (TO-247)