SF24 LH

Overview

The Astrodyne TDI SF24 LH is a single-phase EMC/EMI power line filter designed for chassis mounting. It features a two-stage filtering architecture utilizing threaded posts (8-32) for secure installation. The unit is rated for 250VAC and supports a continuous current of 24A at 50/60Hz frequencies. This component belongs to the SF Series, engineered to suppress electromagnetic interference in switch-mode applications while maintaining compliance with international safety standards.

Feature Summary

• Two-stage EMI filtering architecture for enhanced noise suppression
• Chassis mount design with threaded post termination
• High-performance capability for switch-mode power supplies

Applications

• Switch-mode power supply input stages
• General purpose industrial equipment
• Medical electronic devices requiring EMI suppression

Procurement Notes

Verify the specific datasheet version for the SF24 LH to confirm exact terminal configurations and mounting hole dimensions. Ensure that the required current rating of 24A aligns with the system's operational load. Confirm that the 250VAC voltage rating meets the local mains supply requirements. Check for necessary regulatory approvals such as CE or cURus depending on the target market regulations.

Selection Notes

Select this model when a robust, chassis-mounted solution is required for high-current single-phase applications. The two-stage design offers superior attenuation compared to single-stage alternatives. Consider the physical space available for chassis mounting and the availability of 8-32 threaded posts for integration. Evaluate the need for high-performance filtering in sensitive switch-mode environments.

Part Context

The SF24 LH is part of the broader SF Series from Astrodyne TDI, which specializes in power line filters. This series includes various models tailored for different current ratings and mounting styles. The SF24 LH specifically addresses the needs for 24A applications, providing a balance between performance and physical footprint for industrial and medical electronics.

Replacement Considerations

Consult official Astrodyne TDI documentation for direct cross-references. Verify that any substitute maintains the 24A current rating, 250VAC voltage rating, and two-stage filtering topology. Ensure mechanical compatibility with existing 8-32 threaded post mounts.