The VLF4018AT-4R7M1R3-1 is a wire-wound inductor manufactured by TDK Corporation as part of their VLF series. These inductors are engineered for power supply circuits in compact electronic devices, prioritizing size and efficient power handling. The '4R7M' indicates an inductance value of 4.7µH with a certain tolerance. '1R3-1' most likely specifies the rated current or a version number.

Applications:

• DC-DC converters in portable electronics: Commonly used in smartphones, tablets, and wearable devices due to their compact size and efficiency.
• Power management circuits: Provides voltage regulation and ripple filtering in power supplies.
• High-frequency power inductor applications: Suitable for high-efficiency, small-form-factor power supplies.
• Noise filtering: Reduces electromagnetic interference (EMI) in sensitive circuits.

Features:

• Miniature Size: Compact dimensions optimized for space-constrained designs.
• Magnetically Shielded: Minimizes electromagnetic interference.
• High Current Capability: Capable of handling significant current levels for its size.
• Excellent Inductance Stability: Maintains consistent inductance across temperature and frequency variations.
• RoHS Compliant: Lead-free construction.

Benefits:

• Reduced Board Space: Enables smaller and more compact device designs.
• Minimized EMI: Improves the reliability and performance of surrounding circuits.
• Efficient Power Conversion: Enhances energy efficiency in DC-DC converters.
• Stable Performance: Offers consistent and reliable operation in various conditions.
• Environmentally Friendly: Complies with environmental regulations regarding lead content.

Specifications:

The VLF4018AT-4R7M1R3-1 has an inductance of 4.7µH. Its approximate dimensions are 4.0mm x 4.0mm x 1.8mm. It is designed for reflow soldering. It has a shielded construction. The rated current and DC resistance are specific to this part number and detailed in the TDK datasheet. The operating temperature range is also specified in the datasheet.