The SLF6018T-220MR49-KPF is a shielded power inductor from TDK Corporation, engineered for power supply circuits and DC-DC converters needing high efficiency and low electromagnetic interference (EMI). Its small size and durable build make it a good choice for many different applications.

Applications:

  
• DC-DC converters: Utilized in step-up (boost), step-down (buck), and inverting converters to regulate voltage levels efficiently.
  
• Power supplies for portable devices: Employed in smartphones, tablets, and laptops to provide efficient power management.
  
• Audio amplifiers: Utilized in audio circuits for impedance matching and noise filtering.
  
• LED lighting: Integrated into LED drivers to ensure constant current, which stabilizes brightness and prolongs LED life.
  
• Noise filtering: Deployed to filter out unwanted noise and interference in sensitive electronic circuits.

Features:

  
• Shielded construction: Effectively minimizes EMI, helping to maintain a cleaner electromagnetic environment.
  
• High current capability: Designed to handle significant current without saturation.
  
• Compact size: Ideal for use in applications where space is a constraint.
  
• RoHS compliant: Compliant with environmental regulations, free from hazardous substances.
  
• Surface mount technology (SMT): Streamlines automated assembly processes and reduces manufacturing costs.

Benefits:

  
• Improved power efficiency: Reduces energy loss during power conversion.
  
• Reduced EMI: Minimizes interference with other electronic components in the circuit.
  
• Smaller footprint: Enables more compact and lightweight designs.
  
• Increased reliability: Ensures consistent performance over a long operational life, thanks to robust construction.
  
• Cost-effective: Offers an optimal balance of performance and cost.

Additional Details:

The SLF6018T series uses a ferrite core, contributing to its high inductance and low core loss. The inductance value for the SLF6018T-220MR49-KPF is 22µH (220M), with a tolerance to accommodate slight variations. The rated current is approximately 0.49A (R49), representing the maximum current the inductor can handle before performance starts to degrade significantly. The component's dimensions are approximately 6.0mm x 6.0mm x 1.8mm. Designed for reflow soldering, which is standard in SMT assembly. The operating temperature range is generally from -40°C to +125°C, making it suitable for a variety of environmental conditions. The self-resonant frequency (SRF) is crucial; it marks the point where the inductor's behavior changes from inductive to capacitive, beyond which its effectiveness is diminished.