ACMF-21A

Overview

The ACMF-21A is a two-line common mode choke manufactured by Abracon LLC, designed for surface-mount applications. It features a compact 0805 (2012 metric) package with dimensions of 2.00mm x 1.20mm x 1.00mm maximum height. The component has a rated current of 200mA and a maximum DC resistance (DCR) of 1.6 ohms. It operates within a temperature range of -40°C to +85°C. The device is RoHS3 compliant and classified under ECCN EAR99.

Feature Summary

• Two-line signal line filtering capability in a compact surface-mount footprint
• High DC resistance value suitable for specific impedance requirements
• Compliant with RoHS3 environmental standards

Applications

• Signal line noise suppression
• Common mode interference reduction in compact electronic assemblies

Procurement Notes

Verify the obsolete status of this component before integration into new designs. Confirm availability through authorized distributors or secondary markets if production continuity is required. Ensure that any replacement strategy accounts for the discontinuation notice and potential supply chain constraints associated with end-of-life parts.

Selection Notes

Select this component only when its specific 1.6 ohm DCR and 200mA rating align with circuit requirements. Consider the limited thermal operating range compared to higher-grade alternatives. Evaluate physical space constraints against the 0805 package size. Assess long-term supply risks due to the discontinued lifecycle status.

Part Context

This part belongs to the ACMF series of common mode filters from Abracon LLC. It is distinct from the active ACM-21 series which offers different electrical characteristics such as lower DCR and higher current ratings. The ACMF variant is characterized by its higher resistance profile, targeting specific filtering needs rather than high-current power lines.

Replacement Considerations

No public confirmed substitute part numbers are available for direct replacement.