PEMI2QFN/CT,115

Overview

The PEMI2QFN/CT,115 is a second-order low-pass RC (Pi) EMI filter manufactured by NXP USA Inc. It features two channels with a resistance of 20 Ohms per channel and a total capacitance of 23 pF. The component is housed in a compact 6-XFDFN surface-mount package measuring 1.45mm x 1.00mm x 0.50mm. Designed for data line filtering, it operates within a temperature range of -40°C to 85°C and includes integrated ESD protection capabilities.

Feature Summary

• Integrates passive RC filtering with electrostatic discharge protection
• Provides second-order low-pass attenuation for high-frequency noise suppression
• Supports dual-channel signal processing in a minimal footprint

Applications

• Local Area Network (LAN) interfaces
• Personal Computer System (PCS) data lines
• Wide Area Network (WAN) connections

Procurement Notes

Verify the specific suffix 'CT' against official Nexperia/NXP documentation to confirm the 20 Ohm/23 pF configuration, as other suffixes like 'RR' or 'LT' denote different electrical values. Confirm RoHS compliance status and check for obsolescence notices, as this part may be subject to product change notifications or discontinuation by the manufacturer.

Selection Notes

Select this component when designing circuits requiring combined EMI filtering and ESD protection for differential or single-ended data lines. Ensure the 20 Ohm impedance matches the source/load requirements of the target interface. Verify that the 6-XFDFN package dimensions fit the available PCB real estate constraints.

Part Context

This device belongs to the PEMIxQFN family of integrated passive filter networks. These components are designed to replace discrete R and C components, saving board space while providing standardized filtering characteristics. The family typically offers various channel counts and impedance values tailored for high-speed digital interfaces.

Replacement Considerations

Check for direct substitutes within the PEMIxQFN series with matching 20 Ohm/23 pF specifications. Verify pinout compatibility if replacing with similar packages from other manufacturers. Ensure any alternative maintains the required ESD protection level and operating temperature range.