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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：50V
- 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：39 pF
- Tolerance：±20%
- DC Resistance (DCR) (Max)：-
- Insertion Loss：-
- Temperature Coefficient：C0G, NP0
- Ratings：-
- Height (Max)：0.045" (1.15mm)
- Thread Size：-
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Overview
The Knowles Syfer 0805J0500390MCTE01 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 39 pF with a DC voltage rating of 50 VDC and a current rating of 300 mA. The component utilizes a C0G (NP0) dielectric material housed in an 0805 (2012 metric) package. It employs a three-terminal structure with nickel barrier and 100% tin terminations, ensuring reliable soldering and low parasitic inductance for effective EMI filtering applications.
Feature Summary
- Three-terminal feed-through architecture provides superior high-frequency noise attenuation compared to standard two-terminal capacitors.
- C0G (NP0) dielectric ensures stable capacitance performance across varying temperature conditions.
- Nickel barrier and 100% tin termination system offers robust solderability and corrosion resistance.
Applications
- High-speed digital signal line filtering
- RF circuit impedance matching and decoupling
- EMI suppression in sensitive analog circuits
Procurement Notes
Verify the specific suffix 'E01' against the manufacturer's official documentation to confirm terminal configuration and packaging details. Ensure compatibility with PCB pad layouts designed for three-terminal feed-through components. Cross-reference the 300 mA current rating with application requirements to prevent thermal issues during operation.
Selection Notes
Select this component when low parasitic inductance is critical for high-frequency noise reduction. The 0805 footprint allows for compact board designs while maintaining the electrical benefits of a feed-through topology. Consider the 50 VDC rating relative to peak signal voltages to ensure adequate margin.
Part Context
This part belongs to the Knowles Syfer Syfer® family of high-reliability ceramic capacitors. The '0805J' prefix indicates the 0805 case size and general product line, while the specific suffixes define the capacitance, voltage, tolerance, and termination style. Feed-through variants are distinct from standard MLCCs due to their internal grounding structure.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Verify pinout compatibility and electrical ratings before considering alternative manufacturers or generic equivalents.
