PEMI1QFN/RR,315

Overview

The PEMI1QFN/RR,315 is a surface-mount EMI/RFI filter component manufactured by NXP USA Inc. It features an RC PI network configuration designed for signal line protection. The device integrates a 100-ohm resistor and a total capacitance of 21 picofarads to provide attenuation against electromagnetic interference. It includes built-in electrostatic discharge (ESD) protection capabilities. The component operates within a temperature range of -40°C to 85°C and utilizes a compact SOT883 package.

Feature Summary

• Integrates RC PI filter network with specified resistance and capacitance values
• Provides integrated electrostatic discharge (ESD) protection
• Designed for surface mount installation in space-constrained applications

Applications

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

Procurement Notes

Verify the specific suffix RR against official NXP documentation to confirm the exact electrical characteristics, particularly the 100-ohm resistance and 21-pF capacitance values. Ensure the selected variant matches the required operating temperature range and package type for the target design. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select this component when designing circuits requiring combined EMI filtering and ESD protection for high-speed digital lines. The integrated RC PI structure simplifies board layout by reducing component count. Verify that the 100-ohm series resistance does not violate signal integrity requirements for the specific data rate. Confirm compatibility with the target voltage levels and interface standards used in LAN, PCS, or WAN applications.

Part Context

This component belongs to the PEMI1 family of EMI/RFI filters from NXP. Variants within this family share similar packaging and basic functionality but differ in internal resistance and capacitance values. The RR suffix specifically denotes the 100-ohm and 21-pF configuration. This family is distinct from other NXP filter types such as PEM05Q or different suffix variants like CR or LR which offer different attenuation profiles.

Replacement Considerations

Direct substitutes must match the SOT883 package and the specific 100-ohm/21-pF electrical parameters. Other PEMI1QFN variants with different suffixes may have incompatible impedance characteristics. Verify that any alternative component provides equivalent ESD protection ratings and operates within the same temperature range.