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Product Detailed Parameters
- Description：FILTER RC(PI) 100 OHMS/47PF SMD
- Series：EZAST
- Mfr：Panasonic Electronic Components
- Package：Tape & Reel (TR)
- Type：Low Pass
- Filter Order：4th
- Technology：RC (Pi)
- Number of Channels：4
- Center / Cutoff Frequency：-
- Attenuation Value：-
- Resistance - Channel (Ohms)：100
- Values：R = 100Ohms, C = 47pF
- ESD Protection：No
- Operating Temperature：-25°C ~ 85°C
- Applications：Data Lines for Mobile Devices
- Voltage - Rated：25V
- Mounting Type：Surface Mount
- Package / Case：1608 (4021 Metric), Concave
- Size / Dimension：0.157" L x 0.083" W (4.00mm x 2.10mm)
- Height：0.033" (0.85mm)
- Current：-
- Grade：-
- Qualification：-
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Overview
The Panasonic EZA-ST32AAAJ is a surface-mount RC Pi-filter network designed for EMI suppression. It integrates four channels, each comprising a 100-ohm resistor and a 47pF capacitor. The component operates within a voltage rating of 25V DC and supports a temperature range from -25°C to +85°C. Housed in a compact 1608 (4021 metric) package with dimensions of 4.00mm x 2.10mm x 0.85mm, it features a recessed design suitable for high-density PCB layouts.
Feature Summary
- Integrates four independent low-pass filter channels in a single compact package
- Utilizes RC Pi-filter topology for effective electromagnetic interference suppression
- Features a recessed surface mount footprint optimized for dense circuit board applications
Applications
- Data line protection in mobile devices
- High-speed signal line filtering in consumer electronics
- EMI suppression in portable communication equipment
Procurement Notes
Verify the specific datasheet version for the EZA-ST series, as parameters may vary between sub-types like ST31 or ST53. Confirm that the 1608 package dimensions and 25V rating align with your design constraints. Check for end-of-life notices, as some variants in this family have been discontinued. Ensure compatibility with your assembly process regarding moisture sensitivity level 1.
Selection Notes
Select this component when space-constrained designs require multi-channel EMI filtering without increasing board area. The 100-ohm resistance and 47pF capacitance combination targets specific frequency attenuation requirements. Consider the 0.85mm height limit if vertical clearance is restricted. Compare against other EZA series variants if different resistance or capacitance values are needed for alternative impedance matching.
Part Context
This part belongs to the Panasonic EZA series of RC networks, specifically the ST variant which denotes Pi-filter configurations. These components are engineered for high-frequency noise reduction in digital circuits. The series is widely used in industries requiring reliable signal integrity in small form factors, such as smartphones and tablets.
Replacement Considerations
Publicly confirmed substitute part numbers for EZA-ST32AAAJ were not found in the provided documentation. Verify compatibility with any generic 1608 RC Pi-filters by matching the 100-ohm/47pF specification and physical dimensions.
