The VLP5040LT-4R7M is a wire-wound power inductor manufactured by TDK Corporation. This inductor is designed for power supply circuits, particularly in applications requiring a small form factor and efficient power handling.

Applications

• DC-DC converters in portable electronics
• Power supplies for solid-state drives (SSDs)
• Voltage regulators in mobile devices
• Point-of-Load (POL) converters
• Power management in various electronic circuits

Features

• Compact Size: 5.0 x 5.0 x 4.0 mm dimensions
• Inductance: 4.7 µH
• Low DC Resistance (DCR): Reduces power loss and improves efficiency
• Shielded Construction: Minimizes electromagnetic interference (EMI)
• Operating Temperature Range: -40°C to +125°C (including self-temperature rise)
• RoHS Compliant: Environmentally friendly, lead-free

Benefits

• Improved Power Efficiency: Low DCR minimizes energy dissipation, leading to extended battery life in portable devices
• Reduced Electromagnetic Interference: Shielded construction prevents interference with neighboring components
• Space-Saving Design: Compact size allows for high component density on circuit boards
• Reliable Performance: Stable operation over a wide temperature range
• Simplified Assembly: Surface-mount design facilitates automated manufacturing processes

Additional Details

The VLP5040LT-4R7M inductor utilizes a ferrite core material to achieve a balance between inductance and size. The shielded construction is implemented using a magnetic resin to contain the magnetic field and reduce EMI. This inductor is suitable for reflow soldering processes. The "4R7M" designation indicates a 4.7 µH inductance value with a specific tolerance. Always consult the datasheet for precise electrical characteristics and performance curves.

Specific Electrical Characteristics:

• Inductance: 4.7 µH (measured at a specified frequency, typically 100 kHz or 1 MHz)
• DC Resistance (DCR): Refer to the datasheet for the precise value.
• Saturation Current (Isat): Consult the datasheet for the saturation current rating.
• Rated Current (Irms): Consult the datasheet for the RMS current rating.