SZNUF4401MNT1G

Overview

The SZNUF4401MNT1G is a second-order low-pass RC (Pi) EMI filter manufactured by onsemi. It integrates four channels with a resistance of 200 Ohms and capacitance of 15 pF per channel. The device operates at a maximum voltage of 8 V and is housed in an 8-pin VFDFN package with an exposed pad. This component provides combined EMI filtering and electrostatic discharge protection for high-speed data lines.

Feature Summary

• Integrates fourth-order low-pass filtering with integrated ESD protection in a single compact package
• Provides common-mode noise suppression for differential signal pairs
• Designed to meet automotive reliability standards including AEC-Q101 qualification

Applications

• High-speed USB interface protection
• HDMI port EMI filtering and surge protection
• DisplayPort signal line conditioning
• General-purpose high-speed data bus protection

Procurement Notes

Verify the specific suffix 'G' indicates RoHS compliance and lead-free status as per manufacturer specifications. Confirm the package type matches the design footprint requirements. Ensure the operating voltage rating aligns with the target circuit's maximum signal levels. Check for any recent product change notices regarding assembly sites or material composition updates.

Selection Notes

Select this component when simultaneous EMI attenuation and ESD protection are required for multiple differential pairs. The integrated RC network reduces board space compared to discrete components. Consider the 200 Ohm series resistance impact on signal integrity for very high-frequency applications. Verify compatibility with the system's voltage domain before integration.

Part Context

This part belongs to the ZNUF family of integrated EMI filters from onsemi. These devices combine passive filtering elements with transient voltage suppression diodes. The family targets consumer electronics and automotive infotainment systems requiring compact solutions for signal integrity and robustness against electrical disturbances.

Replacement Considerations

Direct substitutes include other onsemi ZNUF series parts with similar channel counts and resistance values. Cross-reference datasheets for pinout compatibility and electrical parameter equivalence. Verify that alternative components meet the same automotive qualification standards if used in regulated environments.