CMA0805A361R-1A

Common Mode Chokes Overview

The CMA0805A361R-1A is a surface-mount common mode choke manufactured by Laird-Signal Integrity Products. It features a ferrite core and is designed for signal line filtering in automotive applications, holding AEC-Q200 qualification. The component operates within a temperature range of -40°C to +125°C. Key electrical specifications include an impedance of 360 Ohms at 100 MHz, a maximum DC current rating of 220 mA, and a maximum DC resistance (DCR) of 500 mOhms. It utilizes a two-line configuration housed in a standard 0805 (2012 metric) package with dimensions of approximately 2.0 mm x 1.25 mm.

Common Mode Chokes Feature Summary

• Provides common mode noise suppression for differential signal lines
• Qualified for automotive reliability standards via AEC-Q200 certification
• Utilizes shielded ferrite construction for effective EMI filtering

Common Mode Chokes Applications

• Automotive signal line filtering
• Differential data bus protection
• High-frequency noise suppression in compact electronic assemblies

Common Mode Chokes Procurement Notes

Verify the specific manufacturer designation, as sourcing data may list Qnity or Laird. Confirm the AEC-Q200 automotive qualification status directly with the supplier. Ensure the package type matches the required 0805 footprint and that the impedance tolerance aligns with circuit design requirements before finalizing procurement.

Common Mode Chokes Selection Notes

Select this component when designing for automotive environments requiring robust EMI performance on signal lines. The 220 mA current rating suits low-power data interfaces. Verify that the 500 mOhm DCR meets voltage drop constraints. The 0805 size offers a balance between filtering capability and board space efficiency for dense layouts.

Common Mode Chokes Part Context

This part belongs to the CMA0805 series of common mode chokes from Laird-Signal Integrity Products. The series provides various impedance values tailored for different frequency attenuation needs while maintaining a consistent small form factor suitable for modern surface-mount assembly processes.

Common Mode Chokes Replacement Considerations

Compatible substitutes include other 0805 common mode chokes with similar 360 Ohm impedance and current ratings. Ensure any replacement maintains AEC-Q200 compliance if used in automotive contexts. Verify pin compatibility and physical dimensions to ensure direct fitment without PCB redesign.