B82477D4223M900

Arrays, Signal Transformers Overview

The B82477D4223M900 is a surface-mount power inductor from the EPCOS (TDK) B82477 series, designed for automotive applications. It features a ferrite core and wirewound construction within a 12.5 mm x 12.5 mm x 8.5 mm shielded package. The component provides an inductance of 22 µH with a ±20% tolerance. It supports a maximum DC current of 3.11 A and a saturation current of 2.25 A, with a maximum DC resistance of 78 mΩ. Rated for operating temperatures between -55°C and +150°C, it holds AEC-Q200 qualification.

Arrays, Signal Transformers Feature Summary

• AEC-Q200 qualified for automotive reliability standards
• Shielded design to minimize electromagnetic interference
• High-temperature operation capability up to 150°C
• Ferrite core wirewound construction for stable performance

Arrays, Signal Transformers Applications

• Automotive power management systems
• DC/DC converter circuits
• Advanced driver assistance systems (ADAS)
• On-board charging units

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix '900' against official TDK documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure the selected variant matches the required shielding and thermal characteristics for the target automotive environment. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar series components.

Arrays, Signal Transformers Selection Notes

Select this component for applications requiring high current handling in compact automotive spaces. The 22 µH value suits intermediate frequency switching converters. Consider the 78 mΩ DCR for efficiency calculations. The wide temperature range allows use in harsh under-hood environments. Verify footprint compatibility with the 12.5x12.5 mm pad layout during PCB design.

Arrays, Signal Transformers Part Context

This part belongs to the B82477 series of shielded power inductors by EPCOS/TDK. These components are engineered for robust performance in demanding electronic systems. The series offers various inductance values and current ratings within standardized footprints, facilitating modular design approaches in automotive electronics manufacturing.

Arrays, Signal Transformers Replacement Considerations

Check for direct substitutes within the B82477 family with identical electrical parameters. Verify that any alternative maintains the same AEC-Q200 certification and physical dimensions. Ensure the replacement part meets the 22 µH inductance and 3.11 A current requirements without compromising thermal performance.

Arrays, Signal Transformers FAQ

What is the saturation current for this inductor?

The saturation current is specified as 2.25 A.

Is this component suitable for high-temperature automotive environments?

Yes, it is rated for operating temperatures up to +150°C and is AEC-Q200 qualified.