CMA0805A681R-1A

Common Mode Chokes Overview

The CMA0805A681R-1A is a two-line common mode choke manufactured by Laird-Signal Integrity Products. It features an impedance of 680 Ohms at 100 MHz and supports a maximum current rating of 200 mA. The component has a maximum DC resistance (DCR) of 1.3 Ohms and utilizes a surface mount 0805 (2012 metric) package with dimensions of 2.00mm x 1.25mm. It operates within a temperature range of -40°C to 125°C and holds AEC-Q200 qualification.

Common Mode Chokes Feature Summary

• Provides common mode noise filtering for dual signal lines
• Qualified for automotive applications under AEC-Q200 standards
• Designed for high-frequency interference suppression

Common Mode Chokes Applications

• Automotive electronic systems
• Signal line noise suppression
• High-frequency circuit protection

Common Mode Chokes Procurement Notes

Verify the specific suffix '1A' against official datasheets, as suffixes often denote packaging or material variations that do not alter electrical function but affect logistics. Confirm RoHS compliance status directly with the manufacturer, as legacy listings may vary. Ensure the procurement channel sources from authorized distributors to guarantee authenticity and traceability for automotive-grade components.

Common Mode Chokes Selection Notes

Select this component when dual-line common mode filtering is required in space-constrained designs. The 0805 footprint suits compact PCB layouts. Verify that the 200 mA current rating meets the operational requirements of the target signal lines. Consider the 1.3 Ohm DCR impact on signal integrity if low-loss transmission is critical.

Common Mode Chokes Part Context

This part belongs to Laird's CMA series of surface mount common mode chokes. These components are engineered for EMI suppression in sensitive electronics. The series offers various impedance and current ratings to match different signal line requirements across industrial and automotive sectors.

Common Mode Chokes Replacement Considerations

Direct substitutes include other Laird CMA series parts with matching 680 Ohm impedance and 200 mA rating in the 0805 package. Verify pin compatibility and thermal characteristics before substitution.