EMIF09-SD01F3

Overview

The EMIF09-SD01F3 is an EMI/RFI filter array by STMicroelectronics featuring nine channels with RC Pi topology. It integrates a 40 Ohm resistance and 20 pF capacitance per channel, providing low-pass filtering for secure digital memory cards. The device includes ESD protection and operates within a temperature range of -30°C to +85°C. Packaged in a flip-chip configuration, it offers compact integration for high-density applications requiring noise suppression.

Feature Summary

• Integrates nine-channel RC Pi network architecture for comprehensive signal line filtering
• Provides electrostatic discharge (ESD) protection capabilities alongside EMI suppression
• Utilizes flip-chip packaging technology for space-constrained surface-mount implementations

Applications

• Suppression of electromagnetic interference in secure digital memory card interfaces
• Noise filtering for high-speed data lines in embedded systems
• Protection of sensitive digital communication ports against radio frequency interference

Procurement Notes

Verify the specific datasheet revision and ordering suffixes to ensure compatibility with your design requirements. Confirm that the flip-chip package dimensions and thermal characteristics align with your PCB layout constraints. Cross-reference the electrical parameters, particularly the 40 Ohm resistance and 20 pF capacitance values, against your system's impedance matching needs before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits for secure digital memory cards requiring integrated EMI filtering and ESD protection. The nine-channel configuration suits multi-line data buses where space is limited. Ensure the operating temperature range of -30°C to +85°C meets your environmental specifications. Consider the flip-chip form factor if board real estate is critical compared to traditional leaded packages.

Part Context

This component belongs to STMicroelectronics' family of EMI/RFI filters designed for portable electronics. It addresses the growing need for noise suppression in high-speed digital interfaces without adding significant bulk. The integration of filtering and protection functions simplifies bill-of-materials and reduces assembly complexity for manufacturers of devices utilizing secure digital standards.

Replacement Considerations

Consult official STMicroelectronics documentation for verified substitute part numbers. Do not assume functional equivalence with other generic EMI filters due to specific RC values and channel counts.