ACH3218-332-TD01

Overview

The TDK ACH3218-332-TD01 is a third-order LC(T-type) EMI filter designed for high-current power line applications. It features a 1.5A current rating and a 20VDC voltage rating, housed in a compact 1210 (3225 metric) surface-mount package with three PCB pads. The component provides significant attenuation, specified at 25dB within the 30MHz to 85MHz frequency range. It operates reliably across a temperature range of -40°C to 125°C and complies with RoHS3 standards.

Feature Summary

• Third-order LC(T-type) topology for enhanced noise suppression
• Optimized for high-current circuits with stable ground connections
• Compact surface-mount design suitable for space-constrained layouts

Applications

• Power line filtering in electronic equipment
• EMI suppression in high-current circuit paths
• General-purpose EMC filtering for consumer electronics

Procurement Notes

Verify component authenticity through authorized TDK distributors or certified suppliers. Confirm RoHS3 compliance status and check for recent Product Change Notices (PCNs) regarding manufacturing updates. Ensure storage conditions maintain moisture sensitivity level integrity prior to soldering.

Selection Notes

Select this component when third-order attenuation is required for low-voltage, high-current DC lines. The LC(T) configuration offers superior performance compared to standard LC filters when stable grounding is available. Evaluate thermal management requirements given the 125°C maximum operating temperature limit.

Part Context

Part of the TDK ACH series, specifically engineered as a T-type EMC filter for power lines. This series targets applications demanding effective noise reduction in environments where ground stability supports the filter's operational characteristics. It serves as a specialized solution for stringent electromagnetic compatibility requirements.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical ratings if considering alternative manufacturers' components.