PEMI4QFN/LK,132

Overview

The PEMI4QFN/LK,132 is a second-order RC (Pi) low-pass EMI/RFI filter manufactured by NXP USA Inc. It features four channels with a resistance of 65 Ohms and a total capacitance of 13.5 pF per channel. The device provides attenuation of 15dB at frequencies between 800MHz and 3GHz. It includes integrated ESD protection and is housed in an 8-XFDFN surface-mount package.

Feature Summary

• Integrates four independent low-pass filter channels within a single compact package
• Includes built-in electrostatic discharge (ESD) protection for signal line safety
• Utilizes RC Pi-network topology to suppress high-frequency electromagnetic interference

Applications

• High-speed digital bus lines requiring EMI suppression
• Signal conditioning for data communication interfaces
• Protection of sensitive input/output pins against radio frequency interference

Procurement Notes

Verify the exact suffix and tape/reel specifications when ordering, as packaging variations may exist. Confirm that the 8-XFDFN footprint matches your PCB design constraints. Check current availability status as this component may be classified as obsolete or discontinued by the manufacturer.

Selection Notes

Select this component when a multi-channel solution is required for space-constrained designs. Ensure the 65 Ohm impedance and 13.5 pF capacitance values align with the target frequency cutoff requirements. Verify that the 15dB attenuation specification meets the system's EMI compliance standards.

Part Context

This part belongs to the PEMIxQFN series of EMI filters from NXP. It is designed specifically for applications where multiple signal lines require filtering without increasing board area. The QFN package allows for efficient thermal dissipation and reliable surface mounting.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult NXP technical support for direct replacements or compatible alternatives within the same product family.