The SWPA4018S4R7M is a shielded power inductor produced by Sunlord. This component is designed to provide efficient power conversion and filtering in various electronic circuits. Its shielded construction is crucial for minimizing electromagnetic interference (EMI), making it suitable for sensitive applications. The compact form factor allows for use in space-constrained designs.

Applications:

• DC-DC Converters
• Power Management Systems
• Buck and Boost Converters
• Portable Electronic Devices
• LED Lighting Drivers

Features:

• Shielded Construction: Minimizes EMI radiation.
• Compact Size: Dimensions of 4.0mm x 4.0mm x 1.8mm.
• High Current Handling Capability: Capable of handling substantial current loads.
• Low DC Resistance (DCR): Improves efficiency by reducing power loss.
• Operating Temperature Range: Typically -40°C to +125°C.
• RoHS Compliant: Complies with environmental regulations.

Benefits:

• Reduced EMI: Improves overall system performance by reducing interference with other components.
• Space-Saving Design: Allows for smaller and more compact electronic devices.
• Improved Efficiency: Low DCR minimizes power loss, leading to higher efficiency in power conversion circuits.
• Reliable Performance: Designed for stable operation over a wide temperature range.
• Environmentally Friendly: Complies with RoHS standards, reducing the use of hazardous materials.

Additional Details:

The SWPA4018S4R7M features an inductance value of 4.7µH with a tolerance that is generally around ±20%. The saturation current (Isat) and rated current (Irms) are important parameters to consider when selecting this inductor for a specific application. These values dictate the maximum current the inductor can handle before its inductance drops significantly or before it overheats, respectively. The shielded design uses a ferrite core to contain the magnetic field, which reduces electromagnetic emissions. The part number indicates its physical dimensions and inductance value. 'S' indicates the shielded nature of the product, while 'M' typically denotes the packaging style, usually tape and reel, suitable for automated assembly processes.