ACH3218-102-TD01

Overview

The ACH3218-102-TD01 is a third-order LC(T-type) low-pass EMI filter manufactured by TDK Corporation. Designed for surface-mount assembly, it features a 1210 (3225 metric) package with three printed circuit board connections. The component supports a rated voltage of 20V and handles a continuous current of 1.5A. It exhibits a resistance of 0.06 ohms and provides an attenuation value of 25dB within the 30MHz to 85MHz frequency range. The device operates reliably across a temperature spectrum from -40°C to 125°C.

Feature Summary

• Third-order LC(T-type) topology for enhanced high-frequency noise suppression
• Low insertion loss characteristics suitable for power line filtering applications
• Robust thermal stability enabling operation in extreme environmental conditions

Applications

• General-purpose EMI noise reduction in electronic circuits
• Power line filtering for consumer electronics
• Data processing equipment signal integrity protection

Procurement Notes

Verify component authenticity through authorized distribution channels due to discontinuation status. Confirm RoHS3 compliance and lead-free specifications against project requirements. Validate package dimensions and pin configuration compatibility with existing PCB footprints before integration. Ensure storage conditions maintain moisture sensitivity level 1 integrity.

Selection Notes

Evaluate the 1.5A current rating against maximum operational load requirements. Assess the 20V voltage limit relative to peak circuit voltages. Consider the 1210 footprint constraints during layout design. Compare attenuation performance at target frequencies against alternative filter topologies to ensure adequate noise suppression without excessive signal degradation.

Part Context

This component belongs to the ACH series of three-terminal filters designed for electromagnetic interference suppression. It utilizes a compact surface-mount form factor to facilitate automated assembly processes. The series targets applications requiring reliable noise filtration in space-constrained environments while maintaining stable electrical performance under varying thermal loads.

Replacement Considerations

Public confirmed substitute part numbers are not available.