The LLM3225-4R7K is a wire-wound ferrite inductor manufactured by Murata Electronics North America. It's designed for use in power supply circuits and other applications requiring efficient energy storage and filtering.

Applications:

• DC-DC converters: Used for energy storage and filtering in switching regulators.
• Power supply circuits: Provides filtering and impedance matching in power supply designs.
• RF circuits: Can be used for impedance matching and filtering in RF applications.
• Noise filtering: Effective in suppressing high-frequency noise in various electronic circuits.
• Mobile devices: Suitable for use in smartphones, tablets, and other portable electronic devices.

Features:

• Compact size: 3.2mm x 2.5mm footprint, making it suitable for space-constrained applications.
• High inductance value: 4.7μH inductance, providing sufficient energy storage capacity.
• High current rating: Handles relatively high current without saturation.
• Ferrite core: Offers high permeability and low core loss.
• Wire-wound construction: Provides high Q factor and low DC resistance.

Benefits:

• Efficient power conversion: Minimizes energy loss in power supply circuits.
• Stable inductance: Maintains stable inductance value over a wide temperature range.
• Reduced EMI: Helps to suppress electromagnetic interference (EMI) in electronic devices.
• Long-term reliability: Durable construction ensures reliable performance over time.
• Small form factor: Enables miniaturization of electronic devices.

Additional Details:

The LLM3225-4R7K has a tolerance of 10% and a self-resonant frequency (SRF) typically above 20 MHz. It is designed for reflow soldering and is RoHS compliant. The operating temperature range is typically between -40°C and +85°C. This component is ideal for applications where size and performance are critical.