ACF451832-101-TLD01

Overview

The ACF451832-101-TLD01 is a signal line EMI filter circuit manufactured by TDK Corporation. It utilizes an LC (T) filter topology with a cutoff frequency of 280 MHz and operates within a frequency range of 235 MHz to 335 MHz. The component provides 25 dB attenuation and supports a maximum voltage rating of 50 V and a current rating of 300 mA. Designed for surface mount technology, it features SMD/SMT termination and is housed in an 1812 package measuring 4.5 mm in length, 3.2 mm in width, and 1.8 mm in height. The unit weighs approximately 27 mg and functions reliably between -25°C and +85°C.

Feature Summary

• Incorporates a magnetically shielded T-type filter circuit combining ferrite chip beads and multilayer ceramic capacitors
• Provides high attenuation characteristics for effective electromagnetic interference suppression
• Designed for compact surface mount integration in space-constrained electronic assemblies

Applications

• Signal line filtering in portable electronic devices
• Electromagnetic interference suppression in battery chargers
• Noise reduction in power supply circuits
• EMI mitigation in energy-efficient system designs

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix designation matches project requirements, as variations may exist. Check current availability status, as this part number may be subject to discontinuation or lifecycle changes. Ensure storage conditions comply with moisture sensitivity levels if applicable. Validate that the received units match the specified electrical parameters and physical dimensions before integration into production lines.

Selection Notes

Select this component when designing circuits requiring precise EMI filtering at frequencies between 235 MHz and 335 MHz. Consider the 300 mA current rating and 50 V voltage limit to ensure operational safety. The 1812 footprint suits applications with limited board space. Evaluate thermal performance within the -25°C to +85°C operating range. Compare attenuation specifications against other TDK ACF series variants to determine optimal noise suppression for specific signal integrity needs.

Part Context

This component belongs to the TDK ACF series, which specializes in compact EMI/RFI filters for modern electronics. The series integrates ferrite beads and ceramic capacitors into a single shielded package. These filters are engineered for high-performance noise suppression in consumer electronics, automotive systems, and industrial equipment where space efficiency and reliable signal integrity are critical design constraints.

Replacement Considerations

Publicly confirmed substitute: YFF18SC1H102MT0H0N.