PEMI1QFN/WE,315

Overview

The PEMI1QFN/WE,315 is a single-channel EMI/RFI filter manufactured by NXP USA Inc., designed for surface-mount applications. It utilizes an RC (Pi) network configuration to provide low-pass filtering characteristics. The component is housed in a compact SC-101 package, also identified as SOT-883 or 3-XQFN, measuring approximately 1.0 x 0.6 mm. This integrated filter solution is intended for noise suppression in high-speed digital and RF signal lines.

Feature Summary

• Integrates passive resistive and capacitive elements into a single compact footprint
• Provides effective attenuation of electromagnetic interference and radio frequency noise
• Designed for surface-mount technology with wettable flanks for inspection

Applications

• High-speed data line noise suppression
• RF signal path filtering
• Portable electronic device power and signal integrity management

Procurement Notes

Verify the specific suffix code to ensure correct resistance and capacitance values, as variations exist within the PEMI1QFN family. Confirm the manufacturer is NXP Semiconductors and check for AEC-Q200 qualification if automotive use is required. Ensure the package type matches the design layout requirements.

Selection Notes

Select this component when space constraints prevent discrete RC networks. Compare total insertion loss and parasitic effects against discrete alternatives. Verify that the cutoff frequency meets the system's noise immunity requirements without distorting the desired signal bandwidth.

Part Context

This part belongs to NXP's PEMI1QFN series of integrated EMI filters. These components replace multiple discrete components, reducing board space and assembly complexity. The WE suffix typically denotes specific electrical parameters distinct from other variants like HM or RM.

Replacement Considerations

Direct substitutes include other PEMI1QFN variants such as PEMI1QFN/HM,315 or PEMI1QFN/RM,315, provided their electrical parameters match the circuit requirements. Discrete RC networks can serve as functional replacements if board space permits.