IP4251CZ8-4-TTL,13

Overview

The IP4251CZ8-4-TTL,13 is a second-order RC (Pi) low-pass EMI filter manufactured by Nexperia. It integrates four independent filtering channels within an 8-pin UFDFN package with an exposed pad. Each channel provides a resistance of 100 ohms and a total capacitance of 10 pF. The device operates at a maximum voltage of 2.5V and includes integrated electrostatic discharge (ESD) protection. Designed as a passive filter network, it effectively attenuates high-frequency noise on data lines while maintaining signal integrity for connected components.

Feature Summary

• Integrates four independent low-pass filtering channels in a compact surface-mount package
• Provides combined EMI suppression and electrostatic discharge protection capabilities
• Utilizes a passive RC Pi-network topology for effective high-frequency noise attenuation

Applications

• Data line filtering for portable electronic devices
• EMI suppression in USB or similar high-speed digital interfaces
• Signal conditioning for sensitive input/output pins requiring noise isolation

Procurement Notes

Verify the complete part number including the suffix ',13' to ensure correct packaging configuration. Confirm that the 8-pin UFDFN footprint matches your PCB layout requirements. Ensure design compatibility with the specified 2.5V operating voltage limit. Cross-reference the 100-ohm resistance and 10-pF capacitance values against your specific signal integrity needs before finalizing procurement.

Selection Notes

Select this component when a multi-channel solution is required for simultaneous noise reduction on multiple data lines. The integrated ESD protection simplifies bill-of-materials by combining filtering and protection functions. Consider the 8-pin package size if board space is constrained. Verify that the 100-ohm series resistance does not degrade signal performance for your specific application bandwidth requirements.

Part Context

This component belongs to Nexperia's family of integrated passive filter networks designed for data line protection. Similar variants exist with different channel counts, such as 6-channel or 8-channel options, offering scalable solutions for varying interface densities. These devices are engineered to meet stringent electromagnetic compatibility standards while providing robust protection against transient events in consumer and industrial electronics.

Replacement Considerations

Direct substitutes may include other Nexperia models from the same IP42xx series with compatible pinouts and electrical characteristics. Verify equivalent resistance and capacitance values to maintain filter cutoff frequencies. Ensure any replacement offers comparable ESD protection ratings and fits within the available mechanical envelope.