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Product Detailed Parameters
- Description：FILTER RC(PI) 45 OHMS ESD SMD
- Series：PEMIxQFN
- Mfr：NXP USA Inc.
- Package：Bulk
- Type：Low Pass
- Filter Order：2nd
- Technology：RC (Pi)
- Number of Channels：4
- Center / Cutoff Frequency：-
- Attenuation Value：20dB @ 800MHz ~ 3GHz
- Resistance - Channel (Ohms)：45
- Values：R = 45Ohms, C = 23pF (Total)
- ESD Protection：Yes
- Operating Temperature：-40°C ~ 85°C
- Applications：LAN, PCS, WAN
- Voltage - Rated：-
- Mounting Type：Surface Mount
- Package / Case：8-XFDFN
- Size / Dimension：0.067" L x 0.047" W (1.70mm x 1.20mm)
- Height：0.020" (0.50mm)
- Current：-
- Grade：-
- Qualification：-
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Overview
The PEMI4QFN/HT,132 is a passive EMI filter circuit manufactured by NXP USA Inc. It features an RC (Pi) topology designed for surface mount applications. The component provides low-pass filtering characteristics to suppress electromagnetic interference in high-speed signal lines. It is housed in an 8-XFDFN package with dimensions of 1.70mm x 1.20mm. The internal resistance value is specified as 45 ohms, and the total capacitance is configured to support effective noise attenuation.
Feature Summary
- Integrates RC Pi-filter network for compact EMI suppression
- Designed for surface mount assembly on PCBs
- Provides low-pass filtering for signal integrity enhancement
Applications
- High-speed data line protection
- Portable electronic device signal conditioning
- Consumer electronics EMI mitigation
Procurement Notes
Verify the specific suffix HT against official NXP documentation to confirm the exact resistance and capacitance values, as the PEMI4QFN series contains multiple variants with different electrical parameters. Ensure the ordering code matches the required 45-ohm specification. Check current availability status directly with authorized distributors, as lifecycle stages may vary for specific suffixes within this family.
Selection Notes
Select this component when a compact, low-profile EMI filter is required for space-constrained designs. The 8-XFDFN package offers a small footprint suitable for dense layouts. Compare the 45-ohm resistance value against other variants like LK or RE to ensure it meets the specific impedance matching and cutoff frequency requirements of the target application circuit.
Part Context
This part belongs to the PEMI4QFN family of passive EMI filter circuits from NXP Semiconductors. The series includes various configurations such as PEMI4QFN/LK, PEMI4QFN/RE, and PEMI4QFN/RR, each offering different R and C values. These components are engineered to provide multi-channel filtering solutions in a single small outline package, addressing common EMI issues in modern portable devices.
Replacement Considerations
Potential substitutes include other variants within the PEMI4QFN series, such as PEMI4QFN/LK,132 or PEMI4QFN/RE,132, provided their electrical parameters match the design requirements. Verify pin compatibility and package dimensions before substitution.
