PEMI1QFN/LM,315

Overview

The PEMI1QFN/LM,315 is an EMI/RFI filter manufactured by NXP USA Inc., classified under LC and RC Networks. It functions as a second-order low-pass filter with one channel. The component utilizes an RC (Pi) topology featuring a resistance of 65 Ohms and a total capacitance of 16 pF. It is housed in a surface-mount SC-101 package, also identified as SOT-883. This device is designed for signal integrity applications requiring noise suppression.

Feature Summary

• Provides second-order low-pass filtering characteristics to attenuate high-frequency noise.
• Utilizes an RC Pi network topology for effective EMI and RFI suppression.
• Features a compact surface-mount package suitable for space-constrained designs.

Applications

• High-speed data line noise filtering
• Signal integrity enhancement in digital circuits
• EMI suppression on communication interfaces

Procurement Notes

Verify the specific suffix LM against the official datasheet to confirm the 65 Ohm resistance and 16 pF capacitance values. Ensure the SC-101/SOT-883 package footprint matches the design layout. Confirm RoHS3 compliance status if required by project specifications before finalizing procurement.

Selection Notes

Select this component when a second-order low-pass response is required for single-channel signal lines. The RC Pi configuration offers a balance between insertion loss and impedance matching. Consider the 65 Ohm series resistance impact on signal amplitude and the 16 pF shunt capacitance effect on bandwidth limitations for the target application frequency.

Part Context

This part belongs to the PEMI1QFN family of EMI/RFI filters from NXP. Variants within this family differ primarily in resistance and capacitance values while maintaining similar packaging options. The LM suffix specifically denotes the electrical parameters associated with this particular filter configuration.

Replacement Considerations

Direct substitutes must match the 65 Ohm resistance, 16 pF total capacitance, and SC-101 package. Verify pinout compatibility and thermal performance. Cross-reference with Nexperia equivalents if supply chain constraints exist, ensuring identical electrical specifications.