ACF321825-101-TD01

Overview

The ACF321825-101-TD01 is a third-order low-pass LC(T) EMI filter designed for signal lines. It features a single channel with a current rating of 300 mA and a rated voltage of 20V. The component has an on-resistance of 0.15 Ohms and operates within a temperature range of -25°C to 85°C. It utilizes a surface-mount 1210 (3225 metric) package with three PCB pads, measuring 3.20mm x 2.50mm x 2.00mm. The device provides attenuation of 25dB at frequencies between 205MHz and 280MHz.

Feature Summary

• Integrates third-order LC(T) filtering technology for effective noise suppression in signal paths.
• Provides sharp attenuation characteristics suitable for high-frequency data line protection.
• Designed as a compact surface-mount solution for space-constrained mobile applications.

Applications

• Mobile device data lines
• Signal line EMI filtering
• High-speed digital circuit noise suppression

Procurement Notes

Verify component availability status carefully, as this specific part number is listed as obsolete or discontinued by the manufacturer. Confirm if alternative versions within the ACF series are currently active for new designs. Ensure that any sourcing channels provide genuine TDK products with valid RoHS3 compliance documentation. Check for potential supply chain restrictions or regional sales limitations before procurement planning.

Selection Notes

Select this component when a third-order low-pass filter is required for 300mA signal lines. Ensure the operating frequency aligns with the specified attenuation band of 205MHz to 280MHz. Verify that the 1210 footprint fits the PCB layout constraints. Consider the 20V rating and thermal limits for the target application environment.

Part Context

This component belongs to the TDK ACF series of EMI filters. These devices are specifically engineered for mobile electronics, offering integrated noise suppression in a small form factor. The series typically includes various cutoff frequencies to suit different data bus speeds and interference profiles.

Replacement Considerations

Public confirmed substitute part numbers: YFF18SC1H472MT0H0N.