The SLF6018T-220MR49 is a shielded power inductor manufactured by TDK Corporation, designed for use in various power supply and DC-DC converter applications. This inductor prioritizes efficient power conversion and minimal electromagnetic interference (EMI). Its compact form factor and rugged design allow it to be used in many different applications.

Applications:

• DC-DC Converters: Commonly found in step-up (boost), step-down (buck), and inverting converters for voltage regulation.
• Power Supplies for Portable Devices: Used in devices like smartphones, tablets, and laptops for efficient power management.
• Audio Amplifiers: Employed for impedance matching and filtering in audio circuits.
• LED Lighting: Used in LED drivers to ensure a constant current, leading to stable brightness and longevity of LEDs.
• Noise Filtering: Functions to filter out unwanted noise and interference in sensitive electronic circuits.

Features:

• Shielded Construction: Minimizes EMI, contributing to a cleaner electromagnetic environment.
• High Current Capability: Designed to handle significant current without experiencing saturation.
• Compact Size: Suitable for applications where space is limited.
• RoHS Compliant: Made in compliance with environmental standards, free from hazardous substances.
• Surface Mount Technology (SMT): Simplifies automated assembly and reduces manufacturing costs.

Benefits:

• Improved Power Efficiency: Reduces energy loss in power conversion.
• Reduced EMI: Minimizes interference with nearby electronic components.
• Smaller Footprint: Allows for more compact and lightweight product designs.
• Increased Reliability: The robust construction ensures consistent long-term performance.
• Cost-Effective: Offers a favorable balance between performance and price.

Additional Details:

The SLF6018T series uses a ferrite core, which provides a high inductance value and minimal core loss. The inductance of the SLF6018T-220MR49 is 22µH (220M), with a tolerance margin to accommodate slight variations. It has a rated current of approximately 0.49A (R49), the highest current the inductor can handle before experiencing a notable performance decline. Its dimensions are around 6.0mm x 6.0mm x 1.8mm. This inductor is designed to be used with standard reflow soldering processes for SMT assembly. The operating temperature typically ranges from -40°C to +125°C, which suits a wide variety of operational environments. The self-resonant frequency (SRF) is key, as it signifies the frequency at which the inductor transitions from inductive to capacitive behavior. The inductor's effectiveness diminishes above this frequency.