VLS5045EX-4R7M

The VLS5045EX-4R7M is an inductor manufactured by TDK Electronics, designed for use in various electronic applications, particularly in power supply circuits and filtering systems. Here’s a detailed description of its features and specifications:

Physical Characteristics:

• Form Factor: The VLS5045EX-4R7M is a surface-mount inductor, which means it is designed to be mounted directly onto the surface of a printed circuit board (PCB). Its compact size allows for efficient use of space in modern electronic designs.
• Dimensions: The inductor has a footprint of approximately 5.0 mm x 4.5 mm, with a height of around 4.5 mm. This small size makes it suitable for applications where space is at a premium.
• Construction: The inductor is typically encased in a robust resin material that provides protection against environmental factors such as moisture and dust, ensuring reliability in various operating conditions.

Electrical Specifications:

• Inductance Value: The VLS5045EX-4R7M has an inductance value of 4.7 µH, which is ideal for applications requiring moderate inductance for energy storage and filtering.
• Rated Current: It is designed to handle a rated current of up to 3.0 A, making it suitable for power applications where significant current flow is expected.
• DC Resistance (DCR): The inductor features a low DC resistance, typically around 0.045 ohms, which minimizes power loss and improves efficiency in power conversion applications.
• Saturation Current: The saturation current rating is an important specification, indicating the maximum current the inductor can handle before its inductance begins to drop significantly. This inductor is designed to maintain performance under high current conditions.

Performance Characteristics:

• Temperature Range: The VLS5045EX-4R7M operates effectively over a wide temperature range, typically from -40°C to +125°C, making it suitable for use in various environments, including automotive and industrial applications.
• Self-Resonant Frequency: The inductor has a self-resonant frequency that allows it to perform well in high-frequency applications, reducing the risk of unwanted oscillations and ensuring stable operation.

Applications:

The VLS5045EX-4R7M is commonly used in:

• DC-DC Converters: It plays a crucial role in step-down (buck) converters, where it helps in smoothing out the output voltage.
• Power Supply Circuits: Ideal for use in power management systems, including those found in consumer electronics, telecommunications, and industrial equipment.
• Filtering Applications: It can be used in LC filters to reduce noise and improve signal integrity in various electronic circuits.

Conclusion:

The VLS5045EX-4R7M from TDK Electronics is a versatile and reliable inductor that combines compact size with high performance, making it an excellent choice for a wide range of electronic applications. Its robust construction, low DC resistance, and ability to handle significant current make it a preferred component for engineers looking to optimize their designs for efficiency and reliability.