ACF451832-682-TD01

Overview

The ACF451832-682-TD01 is a signal line EMI filter circuit manufactured by TDK Corporation. It utilizes an LC (T) filter topology to suppress electromagnetic interference in electronic circuits. The component features a voltage rating of 50 V and a current rating of 300 mA. It operates within a frequency range of 20 MHz to 90 MHz, with a cutoff frequency of 35 MHz and attenuation of 25 dB. The device is housed in a compact 1812 (4532 metric) surface-mount package, measuring 4.5 mm in length, 3.2 mm in width, and 1.8 mm in height. It supports operation between -25°C and +85°C.

Feature Summary

• Provides effective electromagnetic interference suppression for signal lines using LC (T) network architecture
• Designed for high-density applications with a compact 1812 surface-mount form factor
• Capable of handling specified voltage and current ratings for standard signal processing paths

Applications

• Signal line filtering in embedded systems
• Electromagnetic interference suppression in consumer electronics
• Noise reduction in data transmission circuits

Procurement Notes

Verify the current lifecycle status before integration, as this component may be discontinued or subject to end-of-life notices. Confirm that the 1812 package dimensions and SMD termination style match the target PCB layout constraints. Ensure the operating temperature range of -25°C to +85°C aligns with the environmental requirements of the final assembly. Cross-reference the specific suffix TD01 to confirm packaging and reel specifications if available from official sources.

Selection Notes

Select this component when a low-profile, surface-mount EMI filter is required for signal lines operating up to 50 V and 300 mA. The LC (T) topology offers specific attenuation characteristics suitable for frequencies above 20 MHz. Consider the physical dimensions of 4.5 mm x 3.2 mm x 1.8 mm for space-constrained designs. Verify compatibility with reflow soldering processes given the SMD construction.

Part Context

This part belongs to TDK's ACF series of EMI filter circuits. These components are engineered for noise suppression in various electronic applications. The ACF451832-682-TD01 specifically targets signal line protection, distinguishing it from power line filters within the broader product portfolio. It represents a passive solution for maintaining signal integrity in noisy environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult TDK technical support or authorized distributors for alternative components with matching electrical parameters and package dimensions.