ACF321825-682-TD01

Overview

The ACF321825-682-TD01 is a third-order LC T-type EMI filter manufactured by TDK Corporation. It features a single-channel low-pass configuration with a rated voltage of 20V and a maximum current capacity of 300 mA. The component exhibits a channel resistance of 0.15 ohms and provides 25dB of attenuation within the frequency range of 37MHz to 90MHz. It is housed in a surface-mount 1210 (3225 Metric) package with three pads, measuring 3.20mm x 2.50mm x 2.00mm. The device operates within a temperature range of -25°C to 85°C.

Feature Summary

• Integrates third-order LC T-type topology for enhanced signal line noise suppression
• Provides sharp attenuation characteristics suitable for EMC compliance
• Designed specifically for high-density mobile device data line applications

Applications

• Mobile device data lines
• Signal line EMI filtering
• EMC suppression in compact electronics

Procurement Notes

Verify component status as discontinued or limited supply through official TDK channels. Confirm RoHS3 compliance and MSL rating prior to integration. Ensure alternative sourcing strategies are established due to potential obsolescence constraints affecting long-term production viability.

Selection Notes

Select this component when a specific 1210 footprint and LC T-type topology are required for data line protection. Evaluate the 300mA current rating against circuit requirements. Consider the 20V rating and thermal operating limits for environmental compatibility.

Part Context

This part belongs to the TDK ACF series of microcontroller-compatible EMI filters. These components utilize multilayer ceramic technology to achieve high performance in small form factors. The series is designed to integrate ESD protection and noise suppression capabilities into a single surface-mount device.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.