ACH3218-223-TD01

Overview

The ACH3218-223-TD01 is a third-order LC(T-type) low-pass EMI filter manufactured by TDK Corporation. Designed for surface-mount assembly in a 1210 (3225 metric) package, it supports a maximum current of 1.5 A and a voltage rating of 20 V. The component exhibits a resistance of 0.06 ohms and provides attenuation of 25 dB within the 30 MHz to 85 MHz frequency range. It operates reliably across a temperature range of -40°C to 125°C.

Feature Summary

• Third-order LC(T-type) topology for enhanced high-frequency noise suppression
• Low insertion loss with minimal DC resistance
• Compact surface-mount design suitable for space-constrained PCB layouts

Applications

• General-purpose EMI filtering in electronic circuits
• Power line noise suppression
• Signal integrity protection in consumer electronics

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for recent Product Change Notices (PCNs) regarding manufacturing updates. Ensure storage conditions adhere to moisture sensitivity level requirements before reflow soldering.

Selection Notes

Select this component when third-order attenuation characteristics are required for effective broadband noise reduction. Evaluate thermal management capabilities given the 1.5 A current rating and 125°C maximum operating temperature. Compare physical dimensions against available board real estate in the 1210 footprint.

Part Context

This part belongs to the TDK ACH series of power line filters. These components are engineered for general-grade applications requiring reliable electromagnetic interference suppression. The series utilizes ceramic technology integrated into an LC network structure.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.