The VLCF4018T4R7M1R1-2A1 is a wire-wound inductor produced by TDK Corporation, designed for use in power supply circuits within compact electronic devices. It belongs to TDK's VLCF series, which emphasizes small size and efficient power handling. Its specific characteristics make it suitable for various DC-DC conversion and power management applications.

Applications:

• DC-DC converters in portable electronics
• Power supplies for smartphones and other mobile devices
• Load point (POL) converters
• Buck and boost converters

Features:

• Compact size: 4.0 x 4.0 x 1.8 mm
• Inductance: 4.7 μH
• High current handling capacity for its size
• Shielded construction for reduced EMI
• Low DC resistance for improved efficiency

Benefits:

• Saves valuable board space in portable devices.
• Enhances power conversion efficiency, minimizing energy loss.
• Reduces electromagnetic interference, ensuring stable operation of surrounding circuits.
• Provides reliable performance in compact, power-sensitive applications.
• RoHS compliant, contributing to environmentally friendly designs.

Technical Specifications:

• Inductance: 4.7 μH ±20%
• DC Resistance (DCR): 0.11 Ω (typical), 0.12 Ω (maximum)
• Rated Current: 1.1 A
• Saturation Current: 1.3 A (typical)
• Operating Temperature Range: -40°C to +125°C (including self-temperature rise)
• Self-Resonant Frequency (SRF): 40 MHz (typical)

The VLCF4018T4R7M1R1-2A1 inductor's shielded design minimizes electromagnetic interference, a critical factor in densely packed electronic devices. Its low DC resistance helps to improve power conversion efficiency and reduce heat generation. The high rated current ensures stable performance under varying load conditions. The component's compact size makes it ideal for applications where space is at a premium. Its RoHS compliance ensures that it meets environmental standards.

To ensure optimal performance and reliability, it is essential to adhere to the manufacturer's recommendations regarding circuit design and layout. Detailed specifications and application guidelines can be found in the TDK datasheet for the VLCF4018T4R7M1R1-2A1. Following these guidelines will help to maximize the component's performance and lifespan.