ACF451832-470-TLD01

Overview

The TDK ACF451832-470-TLD01 is a third-order low-pass LC (T-type) EMI filter designed for signal line protection. It integrates ferrite chip beads and multilayer ceramic capacitors within a compact 1812 (4532 Metric) surface-mount package measuring 4.5 x 3.2 x 1.8 mm. The component supports a maximum DC current of 300 mA and operates at voltage ratings up to 50 V AC/DC. It provides significant attenuation, specifically 25 dB at frequencies between 360 MHz and 460 MHz, with a cutoff frequency around 100 MHz. The device functions effectively across an operating temperature range of -25°C to 85°C.

Feature Summary

• Integrates ferrite chip beads and multilayer ceramic capacitors into a single T-type network structure
• Provides high attenuation in the 360 MHz to 460 MHz frequency range
• Utilizes a compact 1812 surface-mount footprint for space-constrained designs

Applications

• Signal line EMI suppression in portable electronic devices
• Noise filtering for high-speed data interfaces
• RFI mitigation in consumer electronics

Procurement Notes

Verify component status as this part may be discontinued or not recommended for new designs. Confirm availability through authorized distributors, as standard packaging quantities may vary. Ensure the specific suffix matches required tape-and-reel specifications. Cross-reference datasheets for updated thermal and electrical characteristics before final integration.

Selection Notes

Select this component when a third-order low-pass response is required for signal integrity. The 300 mA rating suits low-power signal lines rather than power delivery. The 1812 package offers a balance between performance and board space. Consider the 25 dB attenuation specification against specific noise profiles in the 360–460 MHz band.

Part Context

This model belongs to the TDK ACF series, which combines passive components for EMC filtering. The ACF451832 designation indicates the 1812 package size and specific internal configuration. The suffix -470-TLD01 denotes the specific inductance value and packaging variant. This series is engineered for efficient noise reduction in compact modern electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit parameters if considering alternative models from the same manufacturer or other vendors.