SE20

Overview

The Astrodyne TDI SE20 is a single-phase, two-stage EMI/EMI power line filter module designed for switch mode power supplies. It features a 20 A current rating and operates at 250 VAC. The unit utilizes threaded post terminals (8-32) for secure connection. Certified by UL, CSA, cURus, SEMKO, and CE agencies, it ensures compliance with international safety standards. The filter provides effective noise suppression in industrial and commercial environments requiring robust electromagnetic interference mitigation.

Feature Summary

• Two-stage filtering architecture for enhanced noise attenuation
• Threaded post terminal configuration for reliable mechanical attachment
• Multi-agency certification including UL, CSA, and CE for global compliance

Applications

• Switch mode power supply input stages
• Industrial control systems
• Commercial equipment requiring EMI suppression

Procurement Notes

Verify the specific terminal type and mounting hardware requirements against your system design before ordering. Confirm that the 20 A current rating and 250 VAC voltage specifications align with your application's electrical parameters. Ensure compatibility with existing chassis or panel mounting structures. Check for any specific agency approvals required by your regional regulations.

Selection Notes

Select this component when a compact, high-current single-phase filter is needed for switch mode power supplies. The two-stage design offers superior performance compared to single-stage alternatives. Consider the threaded post interface if quick-connect terminals are unsuitable for your assembly process. Verify space constraints as the module has specific physical dimensions.

Part Context

The SE20 belongs to Astrodyne TDI's SE Series of power line filter modules. This series is engineered for general-purpose applications where reliable EMI/RFI suppression is critical. The module integrates capacitive and inductive elements within a shielded enclosure to minimize leakage currents and maximize attenuation across a broad frequency range.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. Evaluate alternative filters based on matching current ratings, voltage limits, and terminal configurations. Ensure any replacement maintains the required two-stage filtering performance and agency certifications.