PEMI1QFN/HM,315

Overview

The PEMI1QFN/HM,315 is a passive EMI/RFI filter network manufactured by NXP USA Inc. It features an RC (Pi) topology with a second-order low-pass configuration. The device integrates a single channel of filtering with built-in electrostatic discharge (ESD) protection capabilities. It is housed in a compact SC-101 package, also identified as SOT-883, designed for surface-mount applications. The component operates within standard electronic environments and is RoHS compliant.

Feature Summary

• Integrates a second-order RC Pi-filter network for effective high-frequency noise attenuation
• Includes internal ESD protection to safeguard sensitive downstream circuitry
• Utilizes a compact SC-101 (SOT-883) surface-mount package for space-constrained designs

Applications

• Signal conditioning for data lines requiring EMI suppression
• Input filtering for USB or high-speed interface ports
• Protection stages for sensitive analog or digital input pins

Procurement Notes

Verify the specific suffix HM against the official NXP datasheet to confirm the exact resistance and capacitance values, as variations exist within the PEMI1QFN family. Ensure the SC-101 footprint matches your PCB layout requirements. Confirm AEC-Q100 qualification status if automotive reliability is required, as this varies by specific sub-type.

Selection Notes

Select this component when a combined solution for EMI filtering and ESD protection is needed in a minimal footprint. The second-order response provides steeper roll-off than first-order alternatives. Consider the total capacitance value relative to signal integrity requirements for high-speed interfaces. Verify thermal performance and power dissipation limits for the specific application environment.

Part Context

This part belongs to the PEMI1QFN family of integrated passive filter networks from NXP. These components are designed to replace discrete resistor-capacitor networks and standalone ESD diodes, reducing board space and assembly complexity. The family offers various configurations with different channel counts and electrical characteristics tailored for diverse signal conditioning needs.

Replacement Considerations

Direct substitutes include other parts from the PEMI1QFN series with matching pinouts and similar electrical parameters, such as PEMI1QFN/LR,315 or PEMI1QFN/CR,315, provided their specific R and C values align with the design requirements. Cross-reference with Nexperia equivalents if supply chain diversification is necessary.