PEMI4CSP/RT,135

Overview

The PEMI4CSP/RT,135 is a four-channel EMI/RFI filter network manufactured by NXP USA Inc. It functions as an active data line filter designed for signal integrity protection. The component supports up to 33mA current handling and features a maximum DC resistance of 120 Ohms per channel. It complies with IEC approval agency standards for electromagnetic interference mitigation. This integrated circuit is categorized under analog and mixed-signal filters, specifically targeting LC or RC network applications for noise suppression in electronic systems.

Feature Summary

• Provides four-channel filtering capability for simultaneous data line protection
• Designed for effective EMI and RFI noise suppression in sensitive circuits
• Complies with IEC standards for electromagnetic compatibility assurance

Applications

• Data line filtering in communication equipment
• EMI mitigation in consumer electronics
• Signal integrity enhancement in industrial control systems

Procurement Notes

Verify the exact suffix designation, as variations such as RT135 may indicate specific tape-and-reel packaging configurations distinct from bulk units. Confirm availability status, as this part number has been reported as obsolete in certain distributor catalogs. Ensure the source document explicitly lists the manufacturer as NXP Semiconductors or NXP USA Inc. to avoid counterfeit components. Cross-reference the IEC approval details if regulatory compliance is required for the end application.

Selection Notes

Select this component when a compact, multi-channel solution is required for suppressing high-frequency noise on multiple data lines simultaneously. The 120 Ohm DC resistance limit should be evaluated against the signal source impedance to ensure minimal voltage drop. Consider the 33mA current rating to verify it meets the operational requirements of the connected peripherals. The IEC certification makes it suitable for markets requiring strict electromagnetic emission controls.

Part Context

This device belongs to the PEMI series of integrated filter networks from NXP. These components are engineered to replace discrete LC or RC filter assemblies, thereby reducing board space and assembly complexity. The series typically targets applications where signal integrity is critical, offering a standardized footprint for designers integrating noise protection into PCB layouts without sacrificing performance.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users must consult official NXP lifecycle notices for direct replacements or evaluate generic four-channel EMI filters with matching electrical specifications.