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Product Detailed Parameters
- Description：FILTER RC(PI) 1 KOHMS/22PF 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)：1k
- Values：R = 1kOhms, C = 22pF
- 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 EZA-ST61AAAJ is a surface-mount RC (Pi) network EMI filter manufactured by Panasonic Industry. It features a fourth-order low-pass configuration with four independent channels. Each channel integrates a 1 kΩ resistor and a 22 pF capacitor, rated for a maximum voltage of 25 V DC. The component utilizes a concave 1608 (4021 metric) package measuring 4.00 mm in length, 2.10 mm in width, and 0.85 mm in height. Designed for data line protection, it operates within a temperature range of -25°C to +85°C.
Feature Summary
- Fourth-order low-pass filtering architecture utilizing RC (Pi) topology
- Four-channel design providing independent signal path protection
- Concave surface-mount footprint optimized for automated assembly
Applications
- Mobile device data lines
- High-speed interface signal conditioning
- EMI suppression in compact consumer electronics
Procurement Notes
Verify current availability status as the component may be discontinued or subject to limited supply. Confirm exact electrical tolerances and packaging specifications against the official Panasonic datasheet prior to integration. Ensure compatibility with existing PCB layout constraints regarding the 1608 concave package dimensions.
Selection Notes
Select this component for applications requiring multi-channel EMI filtering in space-constrained environments. The 1 kΩ resistance value suits specific impedance matching requirements for data lines. Evaluate the 22 pF capacitance against target frequency attenuation needs. Consider the 25 V rating relative to operating voltages.
Part Context
This part belongs to the Panasonic EZA-ST series of chip RC networks. These components are engineered for high-density mounting on printed circuit boards. The series offers various resistance and capacitance combinations to address diverse filtering requirements across multiple electronic product categories.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence with alternative RC networks if sourcing from different manufacturers.
