MMZ1005Y-400C

Overview

The TDK MMZ1005Y-400C is a ferrite chip bead in the MMZ series, designed for surface mount technology. It features a 0402 (1005 metric) package with dimensions of 1 mm length, 0.5 mm width, and 0.5 mm height. The component provides an impedance of 40 Ohms at a test frequency of 100 MHz with a tolerance of 25%. It supports a maximum DC current of 550 mA and has a maximum DC resistance of 100 mOhms. The operating temperature range spans from -55°C to +125°C.

Feature Summary

• Provides electromagnetic interference suppression through high impedance characteristics at specific frequencies
• Designed for compact surface mount applications using standard SMD/SMT termination types
• Capable of handling continuous DC currents up to 550 mA without saturation

Applications

• Signal line filtering in portable electronic devices
• Power supply noise suppression in compact circuits
• High-frequency interference mitigation in consumer electronics

Procurement Notes

Verify the exact suffix configuration against official TDK documentation to ensure compatibility with specific tape-and-reel or cut-tape requirements. Confirm RoHS compliance status and lead times directly with authorized distributors, as packaging quantities and availability may vary by region and supplier channel.

Selection Notes

Select this component when a 40 Ohm impedance at 100 MHz is required within a 0402 footprint. Ensure the circuit's DC current does not exceed 550 mA to prevent performance degradation. Consider the 100 mOhm DC resistance impact on voltage drop and thermal management in low-voltage applications.

Part Context

This part belongs to the TDK MMZ series of ferrite beads, which are widely used for EMI suppression. The MMZ series offers various impedance values and current ratings in standardized metric packages, allowing designers to select components based on specific frequency and current requirements while maintaining consistent mounting footprints.

Replacement Considerations

Cross-reference with other manufacturers offering 0402 ferrite beads with similar 40 Ohm impedance and 550 mA current ratings. Verify that alternative parts match the physical dimensions and electrical characteristics to ensure mechanical and functional compatibility.