ACF451832-333-TLD01

Overview

The TDK ACF451832-333-TLD01 is a signal line EMI filter designed for low-pass applications. It features an LC (T) circuit topology with a cutoff frequency of 100 MHz. The component supports a voltage rating of 50 V and a current rating of 300 mA. It utilizes SMD/SMT termination styles within an 1812 (4532 metric) package. The device operates reliably between -25°C and +85°C.

Feature Summary

• Provides EMI/RFI suppression for signal lines using an LC network structure
• Designed for low-pass filtering applications to attenuate high-frequency noise
• Utilizes a flat, unshielded design suitable for surface mount assembly

Applications

• Signal line protection in portable electronic devices
• EMI filtering in battery chargers and power supplies
• Noise suppression in energy-efficient systems

Procurement Notes

Verify the exact suffix designation, as 'TD01' and 'TLD01' may indicate different manufacturing revisions or packaging variants. Confirm availability status, as some sources list this series as discontinued or limited stock. Ensure the specific part number matches the required electrical characteristics before procurement.

Selection Notes

Select this component when signal integrity requires attenuation above 100 MHz with a 50V DC bias tolerance. The 300mA current rating suits low-power signal lines rather than high-current power rails. Consider the 1812 footprint constraints during PCB layout planning.

Part Context

This component belongs to TDK's ACF series of micro-filters. These filters are engineered for compact designs where space is limited. The series offers various inductance values to tailor cutoff frequencies for specific signal line requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative EMI filters based on identical cutoff frequency and current rating specifications.