MEA1210D401R

Overview

The MEA1210D401R is a surface-mount LC EMI filter manufactured by TDK Corporation. It features a low-pass configuration with two channels and a cutoff frequency of 400 MHz. The component is designed for data line protection in mobile devices, handling a rated current of 100 mA at a maximum voltage of 10 V. It utilizes an LC technology architecture within a compact 0504 (1210 metric) package measuring 1.20 mm x 1.00 mm x 0.60 mm. The device provides attenuation of 20 dB between 1.5 GHz and 3 GHz, ensuring effective signal integrity maintenance while suppressing electromagnetic interference in high-speed digital applications.

Feature Summary

• Provides dual-channel low-pass filtering for simultaneous data line protection
• Compact surface-mount design suitable for space-constrained mobile electronics
• Engineered to maintain signal integrity while attenuating high-frequency noise

Applications

• Mobile device data lines
• High-speed digital circuit interfaces
• Portable consumer electronics signal paths

Procurement Notes

Verify the specific suffix 'R' indicates tape and reel packaging when sourcing. Confirm the part status as discontinued or obsolete through official TDK channels prior to procurement planning. Ensure compatibility with existing PCB footprints and reflow soldering profiles specified in the datasheet. Cross-reference the DigiKey part number 445-8936 series for accurate distributor identification and legacy support documentation.

Selection Notes

Select this component for applications requiring dual-channel EMI suppression on data lines with currents up to 100 mA. The 400 MHz cutoff frequency makes it suitable for protecting interfaces operating below this threshold from higher frequency interference. Consider the physical dimensions of the 1210 package for board layout constraints. Verify that the 10 V rating aligns with the operational voltage levels of the target circuit to prevent dielectric breakdown.

Part Context

This component belongs to the TDK MEA series of LC EMI filters, which are specialized for suppressing electromagnetic interference in high-speed digital circuits. The series offers various cutoff frequencies and channel configurations to suit different interface requirements. These filters are integral to maintaining signal quality in modern portable electronics where space is limited and noise immunity is critical for reliable data transmission.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product status is listed as obsolete, alternative components must be selected based on matching electrical parameters such as cutoff frequency, current rating, and package size. Consult TDK technical support for current generation equivalents.