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Product Detailed Parameters
- Description：FILTER RC(PI) 20 OHMS ESD SMD
- Series：PEMIxQFN
- Mfr：NXP USA Inc.
- Package：Bulk
- Type：Low Pass
- Filter Order：2nd
- Technology：RC (Pi)
- Number of Channels：2
- Center / Cutoff Frequency：-
- Attenuation Value：14dB @ 800MHz ~ 3GHz
- Resistance - Channel (Ohms)：20
- Values：R = 20Ohms, C = 21pF (Total)
- ESD Protection：Yes
- Operating Temperature：-40°C ~ 85°C
- Applications：LAN, PCS, WAN
- Voltage - Rated：-
- Mounting Type：Surface Mount
- Package / Case：6-XFDFN
- Size / Dimension：0.057" L x 0.039" W (1.45mm x 1.00mm)
- Height：0.020" (0.50mm)
- Current：-
- Grade：-
- Qualification：-
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Overview
The PEMI2QFN/CR,115 is a second-order low-pass RC(Pi) EMI filter manufactured by NXP USA Inc. It features two channels with a resistance of 20 ohms per channel and a total capacitance of 21 pF. The component provides an attenuation value of 25 dB at frequencies between 800 MHz and 3 GHz. It is housed in a compact 6-XFDFN surface-mount package measuring 1.45mm x 1.00mm x 0.50mm. Designed for LAN, PCS, and WAN applications, it operates within a temperature range of -40°C to 85°C.
Feature Summary
- Integrates RC(Pi) topology for effective high-frequency noise suppression
- Provides dual-channel signal filtering capability
- Includes integrated ESD protection structures
- Utilizes a small-footprint surface-mount package for space-constrained designs
Applications
- Local Area Network (LAN) interfaces
- Personal Communication Services (PCS) systems
- Wide Area Network (WAN) connections
Procurement Notes
Verify the specific suffix 'CR' to confirm the 20-ohm resistance variant, as other suffixes indicate different values. Confirm RoHS3 compliance status. Check current availability as this part may be subject to obsolescence notices from the manufacturer. Ensure the 6-XFDFN package dimensions match the PCB layout requirements.
Selection Notes
Select this component when a low-pass filter with 20-ohm series resistance is required for differential or dual single-ended lines. Compare against variants like PEMI2QFN/RR,115 which offers 100-ohm resistance. Consider the 21pF total capacitance impact on signal integrity. Verify that the 6-XFDFN package fits the available board space.
Part Context
This device belongs to the PEMIxQFN family of EMI filters from Nexperia/NXP. These components are designed to suppress electromagnetic interference in high-speed data lines. The family includes various resistance values and package types, with the CR suffix specifically denoting the 20-ohm configuration within the 6-XFDFN form factor.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Nexperia/NXP resources for potential end-of-life alternatives.
