ACF321825-152-TD01

Overview

The ACF321825-152-TD01 is a third-order LC (T-type) EMI filter designed for signal lines. It features a low-pass configuration with one channel, rated for 20V and 300mA. The component utilizes a surface-mount 1210 (3225 Metric) package with three PCB pads. Its physical dimensions are 3.20mm x 2.50mm x 2.00mm. It provides an attenuation of 25dB within the frequency range of 205MHz to 280MHz. The device operates between -25°C and 85°C and has a channel resistance of 0.15 ohms.

Feature Summary

• Vertical mounting design suitable for high-density circuit layouts
• Third-order LC T-type topology for effective noise suppression
• Integrated EMI filtering without separate ESD protection components

Applications

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

Procurement Notes

This component is officially obsolete and no longer manufactured by TDK Corporation. Procurement is restricted to last-time buy inventory or secondary market sources. Verify authenticity carefully as availability is limited. Ensure compatibility with existing designs before sourcing from non-direct suppliers due to discontinuation status.

Selection Notes

Select this part only if the specific 205MHz to 280MHz attenuation profile matches the noise spectrum requirements. The 300mA current rating and 20V voltage limit must accommodate the signal line conditions. Consider the vertical footprint constraints and the absence of integrated ESD protection when evaluating alternative signal paths.

Part Context

Part of the TDK ACF series, which focuses on vertically mounted filters to minimize board space usage. These components are engineered for reflow soldering processes and target applications requiring efficient electromagnetic interference suppression in small form factors.

Replacement Considerations

Official substitutes include YFF18SC1H472MT0H0N and ACF321825-151-TD01. Verify electrical parameters such as cutoff frequency and attenuation curves against the original design specifications before substitution.

FAQ

Does the ACF321825-152-TD01 include built-in ESD protection?

No, this component does not provide electrostatic discharge protection; it functions solely as an EMI filter.

What is the maximum operating temperature for this filter?

The maximum operating temperature is 85°C.