ACH4518-332-TD01

Overview

The TDK ACH4518-332-TD01 is a third-order LC (T-type) EMI filter circuit designed for signal and DC power lines. It features a capacitance of 3300 pF, a voltage rating of 50 V, and a current rating of 2 A. The component utilizes SMD/SMT termination in an 1812 (4532 metric) package with three PCB pads. It provides attenuation of 25 dB within the 35 MHz to 100 MHz frequency range. Operating temperatures span from -40°C to +125°C.

Feature Summary

• Third-order low-pass filtering architecture for enhanced noise suppression
• Compact surface-mount design suitable for space-constrained layouts
• High current handling capability for power line applications

Applications

• DC power line filtering
• Signal line noise reduction
• General-purpose EMI suppression

Procurement Notes

Verify component status as the part may be discontinued or subject to production change notices. Confirm availability through authorized distributors and check for recommended replacements if sourcing new inventory. Ensure RoHS compliance matches project requirements before procurement.

Selection Notes

Select this component for applications requiring high-current EMI filtering in a small footprint. The 2 A rating supports moderate power loads. Verify that the 50 V rating meets system voltage needs. Consider the 1812 package size for PCB layout constraints and thermal management requirements.

Part Context

This component belongs to the TDK ACH series of EMI network filters. These filters are engineered for suppressing electromagnetic interference in electronic circuits. The series offers various capacitance values to tailor filtering characteristics for specific frequency ranges and application needs.

Replacement Considerations

TDK recommends YFF18SC1H472MT0H0N as a replacement for this discontinued part number.