ALFT-04-4

Overview

The ALFT-04-4 is a common mode filter choke manufactured by Abracon LLC, designed for PCB mounting via radial through-hole termination. It features a single channel configuration with an inductance of 1 mH measured at a test frequency of 1 kHz and a tolerance of 20%. The component supports a maximum DC current of 4 A and exhibits a maximum DC resistance of 10 mOhms. It operates within a temperature range of -40°C to +125°C. Physical dimensions are specified as 34 mm in length, 18 mm in width, and 41 mm in height.

Feature Summary

• Provides common mode noise filtering for power lines
• Supports high current handling up to 4 A
• Designed for vertical through-hole PCB integration

Applications

• Power supply input filtering
• EMI suppression in AC/DC converters
• Line noise reduction in industrial equipment

Procurement Notes

Verify end-of-life status before design finalization, as the component is listed as discontinued. Confirm availability through authorized distributors or secondary markets if immediate procurement is required. Ensure that the radial lead form factor matches the target PCB footprint and that the 4 A current rating satisfies the application's thermal and electrical requirements without derating issues.

Selection Notes

Select this component when a 1 mH inductance value is required for common mode rejection at low frequencies. The 4 A current rating makes it suitable for moderate power applications where space constraints allow for its specific physical dimensions. Verify that the 10 mOhm DC resistance aligns with efficiency targets for the specific circuit design.

Part Context

This part belongs to the ALFT series of common mode chokes from Abracon. The series typically includes variants with different inductance and current ratings, such as the ALFT-04-3 and ALFT-04-5, allowing designers to choose based on specific filtering and current needs within the same mechanical envelope family.

Replacement Considerations

Check for direct substitutes within the ALFT series, such as ALFT-04-3 or ALFT-04-5, if parameter adjustments are acceptable. Verify pinout compatibility and mechanical fit for any cross-brand replacements.