IRF7811AVTRPBF

Updated: 2026-08-05

Overview

The IRF7811AVTRPBF is a N-channel MOSFET developed by Infineon Technologies, widely used in power management applications. It is part of the HEXFET® Power MOSFET series, known for its high efficiency and reliability. The device is housed in a compact DPAK package, making it suitable for space-constrained designs. With a low on-resistance (Rds(on)) and high switching speed, the IRF7811AVTRPBF minimizes power losses and improves overall system efficiency. It is commonly employed in switching power supplies, DC-DC converters, and motor control circuits, where precise power handling is critical.

Structure and Working Principle

The IRF7811AVTRPBF operates as a voltage-controlled switch, allowing or blocking current flow between its drain and source terminals based on the gate voltage. Its N-channel design ensures low conduction losses, making it energy-efficient for high-frequency applications. The MOSFET's internal structure includes a silicon die with optimized doping to achieve low Rds(on) and fast switching characteristics. The DPAK package provides a balance between thermal performance and footprint, ensuring effective heat dissipation while maintaining a small form factor.

Key Features

The IRF7811AVTRPBF offers several standout features, including a low on-resistance of just a few milliohms, which reduces power dissipation and improves efficiency. Its high current-handling capability makes it suitable for demanding applications like motor drives and power supplies. Additionally, the MOSFET supports fast switching speeds, enabling high-frequency operation without significant losses. The DPAK package ensures robust thermal performance, with a low thermal resistance that helps manage heat effectively in compact designs.

Application Areas

This MOSFET is widely used in industrial and consumer electronics, particularly in power management systems. Common applications include switching power supplies, where it regulates voltage conversion with minimal losses, and DC-DC converters, which require efficient power handling. It is also employed in motor control circuits, providing precise switching for brushed and brushless motors. Other uses include battery management systems, LED drivers, and load switches, where its reliability and efficiency are highly valued.

Maintenance and Precautions

To ensure optimal performance and longevity, proper heat dissipation is critical when using the IRF7811AVTRPBF. Designers should incorporate adequate thermal management, such as heat sinks or PCB copper pours, to prevent overheating. Avoid exceeding the device's maximum voltage and current ratings, as this can lead to failure. Static electricity can also damage the MOSFET, so anti-static precautions should be taken during handling and installation. Regularly inspect for signs of thermal stress or solder joint degradation in high-duty-cycle applications.

B2B Procurement Guide

When procuring the IRF7811AVTRPBF in bulk, verify the supplier's authenticity to avoid counterfeit components. Infineon Technologies or authorized distributors are recommended sources. Bulk pricing typically ranges from $0.50 to $1.20 per unit, depending on quantity and market conditions. Check for compliance with industry standards such as RoHS and REACH. Lead time and inventory availability should also be confirmed, especially for large orders. For custom requirements, consult with the supplier about minimum order quantities (MOQs) and packaging options.