PEMI2QFN/LT,115

Overview

The PEMI2QFN/LT,115 is a second-order low-pass RC (Pi) EMI filter manufactured by NXP USA Inc. It features two channels with a resistance of 65 Ohms per channel and a total capacitance of 23pF. The component is housed in a compact 6-XFDFN surface-mount package measuring 1.45mm x 1.00mm x 0.50mm. Designed for signal line protection, it provides attenuation of 25dB from 800MHz to 3GHz. The device operates within a temperature range of -40°C to 85°C and complies with RoHS3 standards.

Feature Summary

• Integrates dual-channel RC Pi-filter topology for effective common-mode and differential-mode noise suppression.
• Provides integrated ESD protection capabilities alongside RF interference filtering.
• Utilizes a small-footprint XFDFN package suitable for high-density PCB layouts.

Applications

• Local Area Network (LAN) interfaces
• Personal Computer Systems (PCS)
• Wide Area Network (WAN) connections

Procurement Notes

Verify the specific suffix LT against official Nexperia/NXP documentation to confirm the 65-ohm resistance value, as other suffixes in the PEMIxQFN family denote different impedance characteristics. Confirm availability status, as this part number may be obsolete or subject to last-time buy restrictions. Ensure the selected variant matches the required capacitance and package dimensions for the target design.

Selection Notes

Select this component when designing circuits requiring moderate signal line filtering with integrated ESD protection. The 65-ohm resistance offers a balance between insertion loss and noise attenuation for standard data lines. Compare against the PEMI2QFN/RR,115 variant if higher resistance (100 ohms) is needed, or the PEMI2QFN/CT,115 if lower resistance (20 ohms) is preferred for minimal signal degradation.

Part Context

This component belongs to the PEMIxQFN family of EMI filters from Nexperia (formerly NXP Semiconductors). These devices are specifically engineered for protecting high-speed digital interfaces against electromagnetic interference and electrostatic discharge events. The family shares a standardized XFDFN footprint to facilitate board space optimization across various product generations.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult official Nexperia/NXP replacement guides or contact the manufacturer directly for qualified alternatives to the PEMI2QFN/LT,115.

FAQ

What is the total capacitance value of the PEMI2QFN/LT,115?

The total capacitance value is 23pF.

Does this component provide ESD protection?

Yes, the PEMI2QFN/LT,115 includes integrated ESD protection features in addition to its EMI filtering function.