ACF321825-681-TD01

Overview

The TDK ACF321825-681-TD01 is a surface-mount LC (T-type) EMI filter designed for signal line noise suppression. It features a third-order low-pass topology within a 1210 (3225 Metric) package with three PCB pads. The component supports a rated voltage of 20V and handles up to 300 mA of current. It provides 25 dB of attenuation in the frequency range of 95 MHz to 150 MHz, ensuring effective electromagnetic interference reduction for mobile device data lines.

Feature Summary

• Integrates third-order LC T-type filtering topology for enhanced noise suppression
• Provides sharp attenuation characteristics in specific high-frequency ranges
• Designed specifically for signal line EMI filtering applications

Applications

• Data lines for mobile devices
• Signal line EMI filtering
• Electromagnetic interference suppression in compact electronics

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS3 compliance and check for product change notices regarding discontinuation status. Ensure storage conditions meet moisture sensitivity level requirements before assembly.

Selection Notes

Select this component when a 1210 footprint with three pads is required for signal integrity. Consider the 300 mA current rating and 20V maximum voltage limits. Evaluate the 95 MHz to 150 MHz attenuation profile against target noise frequencies.

Part Context

Part of the TDK ACF series, which includes various LC T-type filters optimized for EMC performance. These components are engineered for mobile communications equipment where space constraints and high-frequency noise control are critical design factors.

Replacement Considerations

Check for official substitute part numbers from TDK if this component is discontinued. Verify pin compatibility and electrical specifications before adopting alternative sources.