CM6149R-105

Overview

The Delevan CM6149R-105 is a surface-mount common mode choke designed for signal line filtering. It features an inductance of 1000 µH (1 mH) measured at 10 kHz with a tolerance of ±25%. The component supports a maximum DC current of 400 mA and exhibits a maximum DC resistance of 250 mΩ. It utilizes a two-line configuration within a compact footprint measuring 7.24 mm by 7.24 mm, with a maximum height of 5.33 mm. The device operates reliably across a temperature range of -55°C to +105°C.

Feature Summary

• Provides effective attenuation of common mode noise on dual signal lines through high inductance characteristics.
• Utilizes a low-profile surface mount package suitable for space-constrained printed circuit board layouts.
• Maintains stable electrical performance across a wide industrial operating temperature range.

Applications

• High-speed data interface noise suppression
• Signal integrity enhancement in communication equipment
• Electromagnetic interference filtering in compact electronic modules

Procurement Notes

Verify the specific suffix designation against manufacturer documentation to confirm packaging type, as bulk and reel variants exist within this series. Ensure compatibility with automated pick-and-place equipment regarding the SMD footprint dimensions. Confirm RoHS compliance status via the latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when applications require significant common mode rejection at lower current levels around 400 mA. The 1000 µH value targets higher frequency noise suppression compared to lower inductance variants in the CM6149R family. Evaluate thermal management requirements given the 250 mΩ DC resistance to ensure temperature rise remains within acceptable limits during continuous operation.

Part Context

This part belongs to the CM6149R series of unshielded common mode chokes manufactured by Delevan. The series offers various inductance values ranging from microhenries to millihenries, all sharing a standardized 7.24 mm x 7.24 mm SMD footprint. This design allows for consistent PCB layout practices across different filtering requirements within the same product family.

Replacement Considerations

Direct substitutes include other CM6149R series parts such as CM6149R-154 or CM6149R-224 if inductance adjustments are permissible. Verify that any replacement maintains the required 400 mA current rating and fits the existing 7.24 mm square footprint without exceeding the 5.33 mm height constraint.