ACF321825-332-TD01

Overview

The TDK ACF321825-332-TD01 is a third-order low-pass LC(T-type) EMI filter designed for signal line protection. It operates with a rated voltage of 20V and a maximum current of 300mA, featuring a channel resistance of 0.15 ohms. The component provides attenuation of 25dB within the frequency range of 37MHz to 90MHz. It utilizes a surface-mount 1210 (3225 Metric) package with three PCB pads, measuring 3.20mm x 2.50mm x 2.00mm. The device functions reliably within an operating temperature range of -25°C to 85°C.

Feature Summary

• Integrates third-order LC(T-type) filtering architecture for enhanced noise suppression in compact form factors.
• Provides dedicated signal line EMI filtering optimized for mobile device data lines.
• Features low DC resistance to minimize signal loss while maintaining high current handling capability.

Applications

• Data lines in mobile devices
• Signal line EMI filtering applications
• Mobile communication equipment

Procurement Notes

Verify component status as obsolete or last-time buy through official TDK channels before finalizing design integration. Confirm RoHS3 compliance and REACH status via current datasheets. Ensure replacement strategies are established due to potential supply discontinuation. Validate pinout compatibility if substituting with similar series components.

Selection Notes

Select this component for applications requiring strict EMI suppression on low-voltage data lines where space is constrained. The 300mA rating suits portable electronics. Consider the specific attenuation profile at 37-90MHz against target interference frequencies. Evaluate thermal performance within the -25°C to 85°C range for the intended environment.

Part Context

Part of the TDK ACF series of multi-layer EMC filters. These components combine ESD groove technology with noise suppression capabilities. The ACF321825-332-TD01 specifically targets higher frequency noise attenuation compared to other variants in the same physical footprint family.

Replacement Considerations

Officially recommended substitute: YFF18SC1H472MT0H0N. Verify electrical parameters and mechanical dimensions match design requirements before substitution.