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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：25V
- Current：300 mA
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：0805 (2012 Metric), 3 PC Pad
- Size / Dimension：0.079" L x 0.049" W (2.00mm x 1.25mm)
- Capacitance：0.039 µF
- Tolerance：±20%
- DC Resistance (DCR) (Max)：-
- Insertion Loss：-
- Temperature Coefficient：X7R
- Ratings：-
- Height (Max)：0.045" (1.15mm)
- Thread Size：-
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Overview
The Knowles Syfer 0805Y0250393MXTE01 is a three-terminal multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features a capacitance of 39 nF with a tolerance of ±20% and utilizes X7R dielectric material. The component is rated for a DC voltage of 25 VDC and operates within a temperature range of -55°C to +125°C. Housed in an 0805 (2012 metric) package, it incorporates FlexiCap™ technology with soft terminals and a nickel barrier to enhance reliability.
Feature Summary
- Three-terminal EMI filter architecture for superior high-frequency noise suppression
- FlexiCap™ technology with flexible soft terminals to reduce board stress
- Nickel barrier construction for enhanced solderability and corrosion resistance
Applications
- Board-flex sensitive circuit designs
- High-reliability electronic systems requiring EMI filtering
- Surface mount applications demanding robust mechanical performance
Procurement Notes
Verify the specific suffix 'E01' against official manufacturer documentation to confirm the three-terminal configuration and nickel barrier specifications. Ensure compatibility with standard SMD reflow profiles. Confirm RoHS compliance status through current datasheets before integration into production environments.
Selection Notes
Select this component when high-frequency EMI attenuation is required alongside mechanical durability. The three-terminal design offers better RF performance compared to standard two-terminal MLCCs. Consider the 0805 footprint constraints and verify that the 25V rating meets the circuit's maximum operating voltage requirements under all conditions.
Part Context
This part belongs to the Knowles Syfer FlexiCap™ series, which specializes in high-reliability capacitors featuring soft terminations. The series is engineered to withstand mechanical stress from PCB flexing, making it suitable for rugged applications where standard rigid-termination capacitors might fail prematurely due to cracking.
Replacement Considerations
Direct substitutes must match the three-terminal EMI filter topology and 0805 footprint. Verify equivalent capacitance (39 nF), voltage rating (25V), and dielectric type (X7R). Standard two-terminal capacitors are not functionally equivalent for EMI filtering purposes.
