ACH3218-470-TD01

Overview

The ACH3218-470-TD01 is a third-order LC(T-type) low-pass EMI filter manufactured by TDK Corporation. Designed for surface-mount applications, it features a 1207 (3225 metric) package with SMD/SMT termination style. The component supports a current rating of 1.5 A and operates within a voltage range up to 20 V. It provides an attenuation of 25 dB in the frequency range of 420 MHz to 500 MHz. The device is RoHS compliant and suitable for general-grade electronic applications.

Feature Summary

• Third-order LC(T-type) low-pass filtering architecture
• High current handling capability of 1.5 A
• Surface-mount design for automated assembly

Applications

• General-purpose EMI suppression
• Power line filtering
• Embedded system noise reduction

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 meet moisture sensitivity level requirements before soldering. Validate package dimensions against PCB footprint specifications to ensure mechanical compatibility during integration.

Selection Notes

Select this component when third-order attenuation is required for high-frequency noise suppression in compact designs. The 1.5 A current rating suits moderate power applications. Verify that the 20 V voltage rating aligns with circuit operating conditions. Consider the 1207 package size for space-constrained layouts requiring robust EMI performance without excessive board area consumption.

Part Context

Part of the TDK ACH series of EMI filters, designed for surface-mount technology. The series offers various capacitance values and attenuation characteristics tailored for different frequency ranges and current requirements. This specific model targets applications needing significant high-frequency noise reduction in small form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult TDK technical support for alternative components if this part is discontinued or unavailable.