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Product Detailed Parameters
- Description：FILTER LC(PI) 68 OHMS ESD SMD
- Series：EMIF
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Low Pass
- Filter Order：2nd, 3rd
- Technology：LC (Pi), RC (Pi)
- Number of Channels：4
- Center / Cutoff Frequency：60MHz, 70MHz (Cutoff)
- Attenuation Value：-30dB @ 900MHz
- Resistance - Channel (Ohms)：-
- Values：R = 68Ohms, C = 76pF, 105pF, L = 1.5nH
- ESD Protection：Yes
- Operating Temperature：-30°C ~ 125°C
- Applications：Audio
- Voltage - Rated：-
- Mounting Type：Surface Mount
- Package / Case：8-UFDFN Exposed Pad
- Size / Dimension：0.067" L x 0.059" W (1.70mm x 1.50mm)
- Height：0.026" (0.65mm)
- Current：50 mA
- Grade：-
- Qualification：-
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Overview
The EMIF04-EAR02M8 is a highly integrated EMI filter circuit manufactured by STMicroelectronics, designed for suppressing electromagnetic interference in mobile phone headset applications. It features a two-channel configuration with surface-mount (SMD/SMT) termination in an 8-QFN package. The device supports a current rating of 50mA per line and provides attenuation of -30dB at 900 MHz. It operates within a temperature range of -30°C to +125°C.
Feature Summary
- Integrates LC(Pi) and RC(Pi) filter topologies with ESD protection
- Monolithic wafer-level packaging reduces parasitic elements
- Symmetrical low-pass filtering for I/O lines
Applications
- Mobile phone headset noise suppression
- Audio line EMI/RFI filtering
- Systems exposed to electromagnetic interference
Procurement Notes
Verify component status as the EMIF04-EAR02M8 is listed as obsolete or discontinued by major distributors. Confirm availability through secondary markets or alternative sourcing channels if procurement is required. Ensure compatibility with existing PCB footprints and thermal requirements before integrating this specific part number into new designs.
Selection Notes
Select this component for audio applications requiring compact EMI filtering with integrated ESD protection. The 2-channel design suits dual-line headset interfaces. Consider the QFN-8 package for space-constrained layouts. Verify that the 50mA per line current rating meets application demands and that the -30dB attenuation at 900 MHz satisfies system noise specifications.
Part Context
Part of the IPAD series from STMicroelectronics, focusing on high-reliability monolithic integration. The EMIF04 family offers various channel counts and filter characteristics for different interface types. This specific model targets audio/headset lines with optimized LC/RC topology for balanced performance in mobile devices.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation due to the component's discontinued status. Designers should consult STMicroelectronics for recommended alternatives within the EMIF04 series or similar EMI filter families that match the 2-channel, QFN-8 form factor.
