ACF451832-471-TD01

Overview

The ACF451832-471-TD01 is a signal line EMI filter manufactured by TDK Corporation. It functions as an LC (T-type) network designed for single-channel applications in data line filtering and EMI/RFI suppression. The component features a surface-mount design with SMD/SMT termination, housed in an 1812 package. It operates within a voltage rating of 50 V and a current rating of 300 mA. The device has a cutoff frequency of 100 MHz and supports operating temperatures from -25°C to +85°C.

Feature Summary

• Integrates ferrite chip beads and multilayer ceramic chip capacitors into a compact T-type EMC filter structure.
• Provides effective EMI/RFI suppression for signal lines and data circuits.
• Utilizes a surface-mount form factor suitable for automated assembly processes.

Applications

• Data line filtering
• EMI/RFI suppression
• Signal line protection

Procurement Notes

This component is officially listed as obsolete and no longer manufactured by TDK Corporation. Verification of availability should focus on surplus or secondary market sources rather than direct production channels. Buyers must confirm the authenticity and condition of existing stock carefully, as standard supply chains are discontinued. Cross-referencing with equivalent active parts is recommended for new designs.

Selection Notes

Designers requiring this specific electrical profile should evaluate alternative components from the same manufacturer family that remain in active production. The selection process must account for the discontinuation status, ensuring that any substitute part matches the required 1812 footprint, 50 V rating, and 100 MHz cutoff characteristics without compromising circuit integrity.

Part Context

The ACF series represents TDK's approach to compact EMC filtering by combining passive elements into integrated networks. This specific model belongs to the ACF451832 series, which utilizes the 1812 metric package size. The product line targets space-constrained electronics requiring efficient noise reduction in high-speed signal paths.

Replacement Considerations

Public confirmed substitute part numbers: ACF451832-681-TD01.