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FMV12N50E

Updated: 2026-08-14

Overview

The FMV12N50E is a robust N-channel MOSFET designed for high-voltage applications. It is widely used in power supplies, inverters, and motor control circuits due to its efficient switching characteristics. With a drain-source voltage rating of 500V and continuous drain current up to 12A, this component is suitable for demanding industrial environments. Manufactured using advanced semiconductor technology, the FMV12N50E offers low gate charge and minimal on-resistance, ensuring reduced power losses. Its TO-220 package allows for easy integration into various circuit designs while providing adequate heat dissipation.

Structure and Working Principle

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The FMV12N50E operates as a voltage-controlled switch. When a sufficient gate-source voltage is applied, it allows current to flow between the drain and source terminals. The component's internal structure includes a silicon die with optimized doping to achieve high breakdown voltage and low conduction losses. Its fast switching capability is attributed to the low gate charge, enabling rapid transitions between on and off states. This makes it particularly effective in high-frequency applications such as switch-mode power supplies (SMPS) and pulse-width modulation (PWM) controllers.

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Key Features

The FMV12N50E stands out for its low on-resistance (RDS(on)), typically around 0.5 ohms, which minimizes power dissipation during operation. Its high input impedance ensures efficient control with minimal gate drive power. Additionally, the component features avalanche energy resistance, enhancing reliability in transient voltage conditions. Another notable feature is its wide operating temperature range, typically from -55°C to 150°C, making it suitable for harsh environments. The TO-220 package includes a metal tab for effective heat sinking, crucial for maintaining performance in high-power applications.

Application Areas

This MOSFET is extensively used in industrial power supplies, where efficient energy conversion is critical. It is also a preferred choice in automotive systems, including electric vehicle (EV) power management and battery charging circuits. Other common applications include uninterruptible power supplies (UPS) and solar inverters. In consumer electronics, the FMV12N50E finds use in high-efficiency adapters and LED drivers. Its ability to handle high currents with minimal losses makes it ideal for applications requiring compact and energy-efficient solutions.

Maintenance and Precautions

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To ensure longevity, proper thermal management is essential. Heat sinks or forced air cooling may be required in high-current applications. Avoid exceeding the maximum ratings for drain-source voltage, gate-source voltage, and drain current to prevent device failure. Static electricity can damage the MOSFET, so anti-static precautions should be taken during handling and installation. Storage in a dry, static-free environment is recommended to maintain component integrity before use.

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B2B Procurement Guide

When sourcing the FMV12N50E, verify the supplier's authenticity to avoid counterfeit components. Reputable distributors often provide batch testing reports and compliance certificates. Bulk purchases typically offer cost savings, with prices varying based on order volume and market conditions. Consider lead times and inventory availability, especially for time-sensitive projects. Some suppliers may offer alternative part numbers with similar specifications, which can be useful during shortages. Always confirm the packaging type (e.g., tube, tape-and-reel) to match your assembly requirements.

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