MMZ2012D301BT000

Overview

The MMZ2012D301BT000 is a surface-mount ferrite bead from the TDK MMZ series, designed for high-speed signal line filtering. It features a compact 0805 (2012 Metric) package with dimensions of 2.0mm length, 1.25mm width, and 0.85mm height. The component provides an impedance of 300 ohms at 100 MHz and has a maximum DC current rating of 400 mA. Its low DC resistance is 500 milliohms, ensuring minimal signal loss while effectively suppressing electromagnetic interference in commercial applications.

Feature Summary

• Prevents radiated noise from high-speed signal lines
• Maintains impedance characteristics at high frequencies
• Ultra-small footprint suitable for dense PCB layouts

Applications

• High-speed digital signal line filtering
• Commercial grade electronic equipment
• Noise suppression in portable devices

Procurement Notes

Verify the complete part number including the suffix BT000 to ensure correct packaging and tape-and-reel specifications. Confirm that the 400mA current rating aligns with your circuit's peak operational requirements. Check for RoHS compliance status if required by your manufacturing standards. Ensure the 0805 package size fits within your board design constraints.

Selection Notes

Select this component when space is limited and high-frequency noise suppression is critical for signal integrity. The 300-ohm impedance at 100 MHz makes it suitable for USB, HDMI, or other high-speed data interfaces. Consider the 400mA current limit to avoid saturation during normal operation. The low DC resistance helps maintain voltage levels across the filter.

Part Context

This ferrite bead belongs to TDK's MMZ series, which specializes in small-size components for consumer electronics. The MMZ series is widely used in mobile phones, tablets, and other portable devices where space efficiency and noise performance are paramount. It complements other passive components in EMI suppression networks.

Replacement Considerations

Check TDK's official substitution guide for equivalent parts within the MMZ series. Verify that any replacement maintains the same 300-ohm impedance profile and 400mA current handling capability. Ensure the physical dimensions match the existing footprint to avoid rework.