ACF451832-330-TD01

Overview

The TDK ACF451832-330-TD01 is a signal line EMI filter circuit utilizing an LC (T-type) topology. It features a rated voltage of 50 V and a current rating of 300 mA. The component has a cutoff frequency of 100 MHz and employs SMD/SMT termination. It is housed in an 1812 (4532 metric) package with dimensions of 1.80mm x 4.50mm x 3.50mm. The minimum operating temperature is -25°C, while the maximum operating temperature reaches 85°C.

Feature Summary

• Magnetic shielding provided by ferrite material for the T-type filter circuit
• Designed for excellent attenuation characteristics in signal lines
• Surface mount construction suitable for compact layouts

Applications

• Data lines for mobile devices

Procurement Notes

This component is officially obsolete and no longer manufactured by TDK Corporation. Verification of availability should focus on surplus or secondary market sources rather than direct manufacturer distribution. Buyers must confirm the authenticity and storage history of existing stock due to the discontinued status. Cross-referencing with recommended replacement parts from the same manufacturer is advised for new designs.

Selection Notes

Selection requires evaluating the specific attenuation requirements against the 100 MHz cutoff frequency. The 300 mA current rating and 50 V voltage limit define the operational boundaries. Designers should consider the physical footprint of the 1812 package and the thermal constraints between -25°C and 85°C. Since the part is obsolete, alternative components with similar LC T-type configurations and magnetic shielding properties must be identified.

Part Context

The ACF451832 series belongs to TDK's lineup of EMI/RFI filters designed for high-performance noise suppression. These components utilize a T-type circuit structure encased in ferrite for magnetic shielding. This specific model represents a discontinued variant within that family, previously targeted at portable electronics where space efficiency and signal integrity were critical.

Replacement Considerations

YFF18SC1H221MT0H0N is listed as a manufacturer-recommended substitute.