MURS140T3G

The MURS140T3G is a Schottky barrier rectifier diode manufactured by ON Semiconductor. It is designed for high-efficiency applications, particularly in power management and switching power supplies. Here’s a detailed description of its key features and specifications:

General Characteristics:

• Type: Schottky Barrier Rectifier
• Package: Typically available in a surface-mount package, specifically the DO-214AC (SMB) package, which is compact and suitable for automated assembly processes.
• Material: Silicon-based, utilizing a Schottky junction that allows for low forward voltage drop and fast switching speeds.

Electrical Specifications:

• Reverse Voltage (VR): The MURS140T3G has a maximum reverse voltage rating of 40 volts, making it suitable for various applications where moderate reverse voltage is required.
• Forward Current (IF): It can handle a continuous forward current of up to 1 ampere, which is adequate for many low to medium power applications.
• Forward Voltage Drop (VF): The forward voltage drop is typically around 0.45 volts at a forward current of 1 ampere, which contributes to its efficiency by minimizing power loss during operation.
• Reverse Recovery Time (trr): The diode features a very fast reverse recovery time, which is a critical parameter for high-frequency applications, reducing switching losses.

Thermal Characteristics:

• Operating Temperature Range: The MURS140T3G can operate in a wide temperature range, typically from -55°C to +150°C, allowing it to be used in various environmental conditions.
• Junction Temperature (TJ): The maximum junction temperature is rated at 150°C, which provides a good thermal margin for reliability in demanding applications.

Applications:

The MURS140T3G is commonly used in:

• Power supply circuits
• DC-DC converters
• Solar inverters
• Battery chargers
• Flyback converters
• General-purpose rectification in low-voltage applications

Key Advantages:

• Low Forward Voltage Drop: This characteristic enhances efficiency, especially in battery-operated devices.
• Fast Switching Speed: The Schottky design allows for rapid switching, making it ideal for high-frequency applications.
• Compact Size: The surface-mount package allows for space-saving designs in modern electronics.

Conclusion:

The MURS140T3G from ON Semiconductor is a versatile and efficient Schottky barrier rectifier diode, suitable for a wide range of applications in power management and electronic circuits. Its combination of low forward voltage drop, fast switching capabilities, and robust thermal performance makes it a reliable choice for engineers and designers looking to optimize their designs for efficiency and performance.