ACF451832-682-TLD01

Overview

The TDK ACF451832-682-TLD01 is a signal line EMI filter circuit designed for data lines in mobile devices. It utilizes an LC (T) filter topology to suppress electromagnetic interference within the 20 MHz to 90 MHz frequency range. The component offers a typical attenuation of 25 dB and features a cutoff frequency of 35 MHz. Rated for 50 VDC and 300 mA, it employs SMD/SMT termination in a compact 1812 package measuring 4.5 mm x 3.2 mm x 1.8 mm. Operating temperatures range from -25°C to +85°C.

Feature Summary

• Provides effective noise suppression for high-speed signal lines using a T-circuit design
• Optimized for mobile device applications with low current consumption requirements
• Compact surface-mount form factor suitable for space-constrained PCB layouts

Applications

• Signal line filtering in mobile devices
• Data line EMI suppression
• High-speed interface protection

Procurement Notes

Verify the specific suffix against official documentation, as variations exist between TD01 and TLD01 designations. Confirm availability status as some sources indicate end-of-life or limited regional distribution. Ensure compatibility with required operating temperature ranges and voltage ratings before integration into final designs.

Selection Notes

Select this component when designing circuits requiring targeted EMI reduction in the 20-90 MHz band for low-current signal paths. The 300 mA rating suits data lines rather than power rails. Consider the 1812 footprint constraints and ensure the 50V rating aligns with system signal levels. Validate thermal performance within the specified -25°C to +85°C operational window.

Part Context

This part belongs to TDK's ACF series of EMI filter circuits. These components are engineered specifically for protecting sensitive electronic interfaces from radio frequency interference. The series typically includes various impedance and capacitance configurations tailored for different signal integrity requirements in consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided source material.