ACH4518-102-TD01

Overview

The TDK ACH4518-102-TD01 is a third-order LC(T) EMI filter designed for signal and DC power lines. It features a 50V voltage rating, 2A current capacity, and 470pF capacitance. The component operates within a -40°C to +125°C temperature range and utilizes SMD/SMT termination in an 1812 (4532 metric) package with three PCB pads.

Feature Summary

• Third-order low-pass filtering topology for enhanced noise suppression
• High-current handling capability suitable for power line applications
• Compact surface-mount design for space-constrained layouts

Applications

• DC power line filtering
• Signal line noise reduction
• General-purpose EMI suppression

Procurement Notes

Verify component status as the part may be discontinued or subject to limited availability. Confirm RoHS compliance and environmental specifications against current datasheets. Ensure replacement components meet identical electrical ratings and physical dimensions if sourcing alternatives due to end-of-life status.

Selection Notes

Select this component for applications requiring high-current EMI filtering in compact form factors. Verify that the 2A current rating and 50V voltage limit align with system requirements. Consider the 1812 package size for PCB layout constraints and ensure compatibility with automated assembly processes for surface-mount technology.

Part Context

This component belongs to the TDK ACH series of EMI network filters. These devices are engineered for suppressing electromagnetic interference in both signal and DC power lines. The series offers various capacitance values to tailor filtering characteristics for specific frequency ranges while maintaining high current handling capabilities.

Replacement Considerations

Publicly confirmed substitute: YFF18SC1H472MT0H0N.