ACF451832-681-TLD01

Overview

The TDK ACF451832-681-TLD01 is a surface-mount EMI filter designed for signal and data lines. It features an LC (T-type) circuit topology within a compact 1812 package measuring 4.5 x 3.2 x 1.8 mm. The component supports a maximum rated voltage of 50 V and a current rating of 300 mA. It operates effectively up to a cutoff frequency of 100 MHz, with specific attenuation characteristics noted at frequencies such as 295 MHz and 460 MHz in related series data. The device functions within a temperature range of -25°C to 85°C.

Feature Summary

• Provides electromagnetic interference suppression for high-speed data lines using a T-type LC network structure.
• Engineered for compact mobile device applications with a low-profile surface mount footprint.
• Maintains signal integrity while attenuating noise across specified frequency bands.

Applications

• Data line filtering in mobile devices
• Signal line EMI suppression in portable electronics
• High-speed interface protection in consumer hardware

Procurement Notes

Verify the exact suffix configuration, as variations like TD01 or TLD01 may indicate different packaging or compliance statuses. Confirm availability status, as some listings indicate discontinued or limited stock conditions. Ensure the selected variant matches the required RoHS compliance level and tape-and-reel specifications for automated assembly processes.

Selection Notes

Select this component when space-constrained designs require effective EMI filtering on data lines without compromising current handling capabilities. The 1812 package offers a balance between thermal performance and board real estate. Consider the 300 mA rating and 50 V limit to ensure compatibility with the target circuit's electrical requirements and operating environment.

Part Context

This part belongs to the TDK ACF series of chip filters, which are widely used in portable electronics. The series utilizes proprietary materials to achieve high attenuation in small packages. The ACF451832 designation specifically refers to the physical dimensions and internal circuit configuration, distinguishing it from other series members with different ratings or form factors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing footprints and electrical parameters before considering alternative components from other manufacturers.

FAQ

What is the circuit topology of the ACF451832-681-TLD01?

It utilizes an LC (T-type) circuit configuration for EMI suppression.

What is the maximum operating temperature for this filter?

The maximum operating temperature is 85°C.