DLW31SH222SQ2L

Common Mode Chokes Overview

The DLW31SH222SQ2L is a two-line common mode choke from the EMIFIL DLW31_H series, manufactured by Murata Electronics. It features a wirewound structure in an unshielded 1206 (3216 metric) surface mount package measuring 3.2 mm x 1.6 mm x 1.9 mm. The component provides an impedance of 2200 Ohms at 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 80 mA and has a maximum DC resistance of 1.6 Ohms. Rated for voltages up to 32V, it operates within a temperature range of -40°C to +125°C and holds AEC-Q200 qualification.

Common Mode Chokes Feature Summary

• Provides effective common mode noise suppression for high-speed signal lines through wirewound construction.
• Designed for automotive reliability with AEC-Q200 qualification and extended temperature capability.
• Offers compact footprint integration via standard 1206 surface mount packaging.

Common Mode Chokes Applications

• Automotive infotainment system data bus filtering
• High-speed serial interface noise suppression
• On-board network signal line protection

Common Mode Chokes Procurement Notes

Verify the specific suffix against official Murata documentation to confirm voltage ratings and tolerance levels, as variations exist within the DLW31 family. Ensure the procurement channel provides traceability for AEC-Q200 certified units required for automotive applications. Confirm moisture sensitivity level handling procedures during storage and assembly to maintain component integrity.

Common Mode Chokes Selection Notes

Select this component when designing circuits requiring robust common mode noise attenuation in space-constrained automotive environments. The 1206 package allows for automated placement while maintaining electrical performance. Consider the 80 mA current rating to ensure the choke does not saturate under normal operating conditions. Verify that the 2200 Ohm impedance at 100 MHz aligns with the target frequency spectrum of the noise being suppressed.

Common Mode Chokes Part Context

This part belongs to the DLW31_H series of common mode chokes, which are engineered for high-frequency noise reduction in digital communication lines. Unlike general-purpose inductors, these components are optimized for differential signal integrity preservation while attenuating common mode interference. The series utilizes specialized ceramic and wire materials to achieve stable performance across wide temperature ranges.

Common Mode Chokes Replacement Considerations

Check for DLW31SN222SQ2L if higher current capacity or different voltage ratings are acceptable. Verify pin compatibility and impedance curves before substituting, as physical dimensions may match but electrical characteristics can differ significantly between SH and SN suffixes.