ACB2012M-040-T

Overview

The ACB2012M-040-T is a surface-mount ferrite bead from TDK Corporation, designed for electromagnetic compatibility (EMC) applications. It features a single-line configuration housed in an 0805 package. The component provides an impedance of 40 Ohms at a frequency of 100 MHz. It supports a maximum current rating of 500 mA and has a maximum DC resistance of 300 mOhm.

Feature Summary

• Provides high impedance to suppress electromagnetic interference signals
• Compact surface-mount design suitable for space-constrained PCB layouts
• Single-line construction for efficient noise filtering in signal paths

Applications

• High-speed data line noise suppression
• Power supply input/output filtering
• General-purpose EMI suppression in consumer electronics

Procurement Notes

Verify the specific impedance value against the official datasheet, as some sources may list conflicting values such as 30 Ohms. Confirm the package size is 0805 and the current rating is 500 mA. Ensure the manufacturer is identified as TDK Electronics or TDK Corporation. Check for RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a 40 Ohm impedance at 100 MHz is required for noise attenuation. The 500 mA current rating limits its use in high-power circuits. The 0805 footprint dictates board space availability. Compare with other series if higher current handling or different impedance characteristics are needed.

Part Context

This part belongs to TDK's range of passive EMC components, specifically ferrite beads used for signal integrity and noise reduction. It complements other EMI suppression products like common mode chokes and capacitors within the same product family.

Replacement Considerations

Check for direct substitutes with identical 40 Ohm impedance and 0805 package. Verify that alternative parts maintain the 500 mA current rating and similar DC resistance to ensure circuit performance parity.