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Product Detailed Parameters
- Description：FILTR LC(PI) 2.9NH/250PF ESD SMD
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Low Pass
- Filter Order：3rd
- Technology：LC (Pi)
- Number of Channels：2
- Center / Cutoff Frequency：-
- Attenuation Value：-
- Resistance - Channel (Ohms)：0.28
- Values：L = 2.9nH, C = 250pF
- ESD Protection：Yes
- Operating Temperature：-40°C ~ 125°C
- Applications：Audio
- Voltage - Rated：-
- Mounting Type：Surface Mount
- Package / Case：6-WFBGA, FCBGA
- Size / Dimension：0.067" L x 0.048" W (1.72mm x 1.22mm)
- Height：0.028" (0.70mm)
- Current：-
- Grade：-
- Qualification：-
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Overview
The NUF2441FCT1G is a third-order low-pass LC (Pi) EMI filter with integrated ESD protection, manufactured by onsemi. It features two channels with an inductance of 2.9nH and capacitance of 250pF per channel. The component operates within a temperature range of -40°C to 125°C and is housed in a compact 6-WFBGA package measuring 1.72mm x 1.22mm x 0.70mm.
Feature Summary
- Integrates LC filtering with electrostatic discharge protection in a single surface-mount device
- Provides high attenuation for electromagnetic interference in audio signal lines
- Utilizes a flip-chip WFBGA package for minimal footprint and reliable mounting
Applications
- Audio line protection in mobile devices
- EMI suppression for portable electronics
- Signal integrity enhancement in consumer audio interfaces
Procurement Notes
Verify the specific ordering suffix to confirm the tape and reel quantity matches project requirements. Confirm RoHS compliance status and material declarations via official datasheets before integration. Ensure the selected variant aligns with the required operating temperature range and package dimensions for the target PCB layout.
Selection Notes
Select this component when simultaneous ESD protection and high-frequency noise filtering are required for differential or single-ended audio lines. The low inductance value preserves signal fidelity while attenuating RF interference. Consider the small form factor for space-constrained designs where discrete components would exceed available board area.
Part Context
This part belongs to onsemi's NUF series of integrated passive filters. These components combine standard filter topologies with transient voltage suppression diodes. The series targets applications requiring robust signal conditioning and protection against electrical overstress in compact electronic assemblies.
Replacement Considerations
NUF2441FC is the base product number. Verify pinout compatibility and electrical specifications if substituting with other NUF series variants. Cross-reference package dimensions to ensure mechanical fit within the existing design constraints.
