DLW21HN121HQ2L

Common Mode Chokes Overview

The DLW21HN121HQ2L is a wirewound common mode choke coil from the Murata EMIFIL DLW21H series, designed for surface mount applications in the 0805 (2012 metric) package. It features an impedance of 120 Ohms at 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 200 mA and has a maximum DC resistance of 680 mOhms. It operates within a temperature range of -40°C to +85°C and is unshielded.

Common Mode Chokes Feature Summary

• Compact 0805 footprint with low profile dimensions suitable for space-constrained PCB layouts
• Wirewound construction providing effective electromagnetic interference suppression
• Unshielded design optimized for high-speed signal line protection

Common Mode Chokes Applications

• EMI suppression in high-speed digital signal lines
• Common mode noise filtering in portable electronic devices
• Signal integrity enhancement in compact consumer electronics

Common Mode Chokes Procurement Notes

Verify the specific suffix codes against official Murata documentation to ensure correct impedance and current ratings. Confirm RoHS compliance status through authorized distributors. Check for any recent lifecycle changes or obsolescence notices directly from the manufacturer before finalizing procurement plans.

Common Mode Chokes Selection Notes

Select this component when a small form factor is required for EMI filtering on high-speed interfaces. Ensure the circuit's DC current does not exceed 200 mA to prevent saturation. Consider the unshielded nature if adjacent sensitive components are present. Validate impedance requirements at the target frequency against the 120 Ohm specification.

Common Mode Chokes Part Context

This part belongs to the DLW21H series of miniature common mode chokes manufactured by Murata Electronics. The series is characterized by its small 0805 size and wirewound technology, targeting applications where board space is limited but effective noise suppression is critical for signal integrity.

Common Mode Chokes Replacement Considerations

Consult official Murata substitution guides for compatible alternatives within the DLW21 series. Verify that any substitute matches the 0805 package dimensions, 120 Ohm impedance, and 200 mA current rating to maintain circuit performance.