PEMI1QFN/LK,315

Overview

The PEMI1QFN/LK,315 is a single-channel EMI/RFI filter manufactured by NXP USA Inc. It functions as a second-order low-pass RC (Pi) network designed for signal conditioning and data line filtering. The component integrates passive filtering elements with electrostatic discharge (ESD) protection capabilities. It operates within an ambient temperature range of -40°C to 85°C and utilizes a surface-mount SOT-883 package. The internal circuitry provides a resistance value of 65 Ohms and a total capacitance of 13.5 pF.

Feature Summary

• Integrates a second-order low-pass RC Pi-filter network for effective EMI and RFI suppression
• Includes built-in electrostatic discharge (ESD) protection for data lines
• Utilizes a compact SOT-883 surface-mount package suitable for space-constrained designs

Applications

• Local Area Network (LAN) interfaces
• Personal Communications Service (PCS) systems
• Wide Area Network (WAN) connections

Procurement Notes

Verify the specific suffix designation during procurement to ensure correct component selection. Confirm that the required operating temperature range aligns with the specified -40°C to 85°C limit. Ensure compatibility with the SOT-883 footprint on the target printed circuit board layout. Validate that the integrated ESD protection levels meet the system's environmental requirements.

Selection Notes

Select this component when designing circuits requiring combined signal integrity filtering and transient protection in a minimal footprint. It is appropriate for high-speed data lines where electromagnetic interference must be attenuated without complex external components. Consider the fixed electrical characteristics of the internal RC network against the specific frequency response needs of the application interface.

Part Context

This part belongs to NXP's family of passive filter networks designed for signal conditioning. These components are engineered to replace discrete resistor and capacitor arrangements, thereby reducing assembly complexity and board space. The series supports various communication standards requiring robust noise immunity and reliable data transmission in electronic systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications before considering alternative manufacturers or generic equivalents.