ACH4518-470-TD01

Overview

The TDK ACH4518-470-TD01 is a surface-mount EMI filter circuit designed for high-current applications. It features an LC (T) topology with a capacitance of 47 pF and a rated voltage of 50 V. The component supports a current rating of 2 A and operates within a temperature range of -40°C to +125°C. Housed in a compact 1812 (4532 metric) package, it provides third-order low-pass filtering characteristics suitable for signal and DC power lines.

Feature Summary

• Provides targeted suppression of electromagnetic interference in high-current power paths
• Utilizes LC (T) network topology for effective noise attenuation
• Designed for stable ground circuits to achieve excellent attenuation performance

Applications

• DC power line filtering
• Signal line noise suppression
• High-current circuit EMC mitigation

Procurement Notes

Verify component authenticity through authorized TDK distributors or certified partners. Confirm the specific suffix TD01 matches required reel specifications. Check RoHS compliance documentation against current regulatory standards. Ensure storage conditions adhere to manufacturer guidelines to maintain solderability and electrical integrity prior to assembly.

Selection Notes

Select this component when designing circuits requiring robust EMI suppression for currents up to 2 A. The 1812 footprint offers a balance between thermal performance and board space efficiency. Consider the 50 V rating and 47 pF capacitance value relative to the specific signal frequency requirements. Ensure the application environment remains within the specified -40°C to +125°C operating temperature range.

Part Context

This part belongs to the TDK ACH series of EMI filters, which are specialized for suppressing noise in power and signal lines. The series is characterized by its ability to handle significant current loads while maintaining small form factors. These components are integral to modern electronic designs where electromagnetic compatibility is critical for reliable operation.

Replacement Considerations

Consult official TDK substitution guides for verified alternatives. Cross-reference parameters such as capacitance, current rating, and package dimensions. Verify that any substitute maintains equivalent attenuation characteristics and thermal stability for the specific application context.