IP4251CZ16-8-TTL,1

Overview

The IP4251CZ16-8-TTL,1 is an integrated passive filter network featuring ESD protection. It functions as an RC (Pi) low-pass filter with eight channels. Each channel provides a resistance of 100 Ohms and a total capacitance of 10 pF. The device operates in a 16-pin UFDFN package with an exposed pad. It is designed to suppress unwanted RF signals on I/O lines.

Feature Summary

• Integrates eight-channel RC low-pass filtering with inherent ESD protection capabilities.
• Utilizes a compact surface-mount package design suitable for space-constrained applications.
• Provides signal integrity maintenance by attenuating high-frequency noise on data lines.

Applications

• Filtering RF interference on USB interfaces
• Noise suppression on high-speed digital I/O lines
• Signal conditioning for communication ports

Procurement Notes

This component has reached end-of-life status. Nexperia issued discontinuance notifications in June and July 2024. The manufacturer is no longer accepting new orders. Availability is limited to existing stock or surplus sources. Designers must verify current supply chain constraints before attempting procurement.

Selection Notes

Engineers should evaluate alternative components due to the product's discontinued status. The IP4254CZ16-8-TTL,1 is a related variant within the same family but also faces supply restrictions. Verify pin compatibility and electrical specifications when selecting replacements to ensure circuit functionality remains intact without redesign.

Part Context

This part belongs to Nexperia’s range of integrated passive filter networks. These devices combine filtering and protection functions into single packages. The series targets applications requiring clean signal transmission while minimizing board space. The specific model offers eight independent channels for multi-line signal management.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The IP4254CZ16-8-TTL,1 is listed as a related product but shares similar discontinuation risks. Engineers must identify qualified alternatives independently based on electrical requirements.

FAQ

What is the filter topology used in this device?

The device utilizes an RC (Pi) second-order low-pass filter topology.

Does this component include electrostatic discharge protection?

Yes, the integrated network includes built-in ESD protection features alongside the filtering function.