DLW21SH670HQ2L

Common Mode Chokes Overview

The DLW21SH670HQ2L is a single-channel common mode choke from the Murata DLW21_H series, designed for surface mount installation in an 0805 (2012 metric) package measuring 2 mm x 1.2 mm x 1.2 mm. It features a wirewound structure with a rated DC voltage of 20V and a maximum DC current of 320 mA. The component provides a common mode impedance of 67 Ohms at 100 MHz with a tolerance of ±25%. Its maximum DC resistance is specified at 240 mOhms. Certified to AEC-Q200 standards, it operates within a temperature range of -40°C to +125°C.

Common Mode Chokes Feature Summary

• AEC-Q200 qualified automotive-grade reliability
• High self-resonant frequency for superior high-speed signal transmission
• Wirewound construction for effective noise suppression

Common Mode Chokes Applications

• Automotive powertrain and safety equipment
• Automotive infotainment and comfort systems
• Low Voltage Differential Signal (LVDS) interfaces
• USB and HDMI data lines

Common Mode Chokes Procurement Notes

Verify the specific suffix HQ2L confirms the 67 Ohm impedance variant and high-frequency characteristics. Confirm AEC-Q200 certification requirements match the target automotive application. Ensure PCB layout accommodates the 0805 footprint dimensions. Check that the 320 mA current rating meets the circuit's operational demands without excessive derating.

Common Mode Chokes Selection Notes

Select this component when high-speed signal integrity is critical due to its ultra-high self-resonant frequency. It is suitable for applications requiring precise impedance matching. Consider the 240 mOhms DC resistance for power loss calculations. Verify compatibility with the 20V DC rating and 320 mA current limit for the specific circuit design.

Common Mode Chokes Part Context

This part belongs to the DLW21SH series, which includes variants optimized for different performance profiles. The HQ2 suffix denotes the high-frequency version, distinct from standard or PoC-optimized variants like XQ2. It shares the same physical 0805 package but differs internally in impedance and resonant frequency characteristics compared to other members of the family.

Common Mode Chokes Replacement Considerations

Direct substitutes include other DLW21SH670HQ2L units from authorized sources. Alternative impedances within the DLW21SH series may require circuit redesign. Cross-referencing with non-Murata brands requires careful verification of impedance curves and thermal performance.