ALFT-04-9

Overview

The ALFT-04-9 is a common mode filter choke manufactured by Abracon LLC, designed for through-hole PCB mounting. It features a single channel configuration with an inductance of 10 mH at a test frequency of 1 kHz and a tolerance of 20%. The component supports a maximum DC current of 3 A and exhibits a maximum DC resistance of 40 mOhms. Operating within a temperature range of -40°C to +125°C, it measures 34 mm in length, 18 mm in width, and 41 mm in height.

Feature Summary

• Provides common mode noise suppression for line filtering applications
• Utilizes radial through-hole termination for standard PCB integration
• Engineered for high thermal stability across extended industrial temperature ranges

Applications

• Power supply input filtering
• EMI suppression in AC/DC converters
• Signal integrity protection in communication interfaces

Procurement Notes

Verify the specific manufacturing lot date code against project requirements due to potential supply chain variations. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as regulatory documentation may vary by production batch. Ensure that the through-hole footprint dimensions align precisely with the target printed circuit board layout before finalizing procurement decisions.

Selection Notes

Select this component when a 10 mH inductance value is required for common mode noise attenuation at 1 kHz. The 3 A current rating suits moderate power applications, while the low DC resistance minimizes insertion loss. Verify that the physical dimensions fit the available board space and that the operating temperature range meets the environmental constraints of the end-use device.

Part Context

This part belongs to the ALFT series of common mode chokes from Abracon LLC. The series offers various inductance and current ratings tailored for different filtering needs. The ALFT-04-9 specifically targets applications requiring higher inductance values compared to lower-numbered variants in the same family, providing robust noise rejection capabilities.

Replacement Considerations

Cross-reference with other Abracon ALFT series parts for alternative inductance or current ratings. Verify pin compatibility and mechanical dimensions when considering substitutes from other manufacturers to ensure seamless integration without redesigning the PCB footprint.