ACF321825-151-TD01

Overview

The TDK ACF321825-151-TD01 is a third-order LC(T-type) EMI filter designed for signal line protection. It features a 20V voltage rating and 300mA current capacity with 0.15 ohm series resistance. The component operates within a temperature range of -25°C to 85°C and utilizes a 1210 (3225 metric) surface-mount package. It provides 25dB attenuation in the 205MHz–280MHz frequency band, with a cutoff frequency of 241MHz.

Feature Summary

• Third-order low-pass filtering topology utilizing magnetically shielded ferrite technology
• Superior high-frequency attenuation characteristics for signal integrity preservation
• Compact surface-mount design optimized for space-constrained mobile device layouts

Applications

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

Procurement Notes

Verify component status as discontinued by manufacturer. Confirm availability through authorized distributors or surplus channels. Validate RoHS3 compliance and MSL level 1 classification prior to integration. Ensure replacement part compatibility matches electrical specifications and physical footprint requirements for existing designs.

Selection Notes

Select this component for applications requiring third-order attenuation in compact form factors. Evaluate thermal performance within specified operating limits. Consider series resistance impact on signal loss. Verify package dimensions against PCB layout constraints. Assess suitability for mobile data line environments requiring robust EMI suppression.

Part Context

Part of the TDK ACF series featuring magnetically shielded ferrite construction. Designed for superior attenuation in signal line applications. Utilizes LC(T-type) topology for effective noise reduction. Compatible with standard surface-mount assembly processes. Part number aliases include ACF321825-151 and 445-2071-2-ND.

Replacement Considerations

Manufacturer recommends YFF18SC1H102MT0H0N as an alternative. Verify electrical parameters and physical dimensions match original design requirements before substitution.

FAQ

What is the specific attenuation performance of this filter?

The component provides 25dB attenuation specifically within the 205MHz to 280MHz frequency band.

Is this component suitable for mobile device applications?

Yes, official documentation lists mobile device data lines as a primary application area.