PEMI1QFN/CP,315

Overview

The PEMI1QFN/CP,315 is a single-channel RC (Pi) EMI filter manufactured by NXP USA Inc. It integrates passive filtering components with electrostatic discharge (ESD) protection in a compact SOT-883 (SC-101) surface-mount package. The device features a resistance of 20 Ohms and a total capacitance of 18.5 pF. Designed for signal conditioning, it provides second-order low-pass filtering characteristics to suppress electromagnetic interference while protecting sensitive interfaces from voltage transients.

Feature Summary

• Integrates RC Pi-filter network with ESD protection capabilities
• Provides second-order low-pass attenuation for signal lines
• Compact SOT-883 surface-mount packaging for space-constrained designs

Applications

• Signal line EMI suppression in portable electronics
• ESD protection for high-speed data interfaces
• Noise filtering in consumer devices

Procurement Notes

Verify the specific suffix CP against the official NXP datasheet to confirm the 20 Ohm resistance and 18.5 pF capacitance values. Ensure the SOT-883 package footprint matches the PCB layout requirements. Confirm RoHS compliance status through the manufacturer's current documentation before finalizing procurement specifications.

Selection Notes

Select this component when a combined solution for EMI filtering and ESD protection is required on a single signal channel. The 20 Ohm resistance value influences the cutoff frequency; verify compatibility with the target signal bandwidth. The integrated ESD capability reduces bill-of-materials count compared to discrete solutions.

Part Context

This part belongs to the PEMI1QFN family of passive filter networks from NXP. Variants within this series differ primarily in resistance and capacitance values, such as the PEMI1QFN/LR which offers different attenuation characteristics. The family is designed for general-purpose signal conditioning in mobile and consumer applications.

Replacement Considerations

Direct substitutes include other NXP PEMI1QFN variants like PEMI1QFN/LR,315 or PEMI1QFN/HT,315, provided their specific electrical parameters match the circuit requirements. Cross-manufacturer replacements require careful verification of pinout compatibility and equivalent ESD performance ratings.