ACF321825-470-TD01

Overview

The ACF321825-470-TD01 is a surface-mount EMI filter from the TDK ACF series, designed for signal line noise suppression. It utilizes an LC (T-Type) topology with magnetic shielding via ferrite to provide superior attenuation characteristics. The component operates within a temperature range of -25°C to 85°C and supports a rated voltage of 20V. It handles a maximum current of 300 mA with a channel resistance of 0.15 ohms. The device is housed in a compact 1210 (3225 Metric) package with three PCB pads, measuring 3.20mm x 2.50mm x 2.00mm.

Feature Summary

• Integrates a magnetically shielded T-type filter circuit using ferrite materials for enhanced noise suppression.
• Provides sharp attenuation characteristics suitable for high-frequency EMI/RFI filtering applications.
• Features a low-profile surface-mount design optimized for space-constrained mobile device data lines.

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS3 compliance and REACH status prior to integration. Check for Product Change Notifications (PCN) regarding manufacturing updates. Ensure storage conditions align with Moisture Sensitivity Level (MSL) 1 requirements to maintain reliability during assembly processes.

Selection Notes

Select this component when designing circuits requiring compact, shielded EMI filters for low-voltage signal lines. The 300 mA current rating and 0.15 ohm resistance suit portable electronics. Consider the 1210 footprint for board layout compatibility. Evaluate attenuation performance against specific frequency interference profiles to ensure adequate noise reduction for the target application environment.

Part Context

This part belongs to the TDK ACF series, which specializes in multi-layer chip devices offering excellent EMC suppression. The series integrates ESD protection and noise suppression capabilities into single components. These filters are engineered for modern electronic systems demanding high-density packaging and effective electromagnetic interference management in sensitive signal paths.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation. Verify compatibility with alternative components by matching LC T-type topology, current ratings, and physical dimensions before substitution.