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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：200V
- Current：50 mA
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：1812 (4532 Metric), 3 PC Pad
- Size / Dimension：0.177" L x 0.126" W (4.50mm x 3.20mm)
- Capacitance：3900 pF
- Tolerance：±20%
- DC Resistance (DCR) (Max)：-
- Insertion Loss：-
- Temperature Coefficient：X7R
- Ratings：-
- Height (Max)：0.030" (0.75mm)
- Thread Size：-
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Overview
The Knowles Syfer 1812Y2000392MSTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features an X7R dielectric material with a capacitance of 3900 pF and a voltage rating of 20 VDC. The component utilizes a FlexiCap/Nickel Barrier termination system and holds AEC-Q200 qualification, ensuring suitability for automotive environments. Packaged in a standard 1812 (4532 metric) case size, it offers robust performance characteristics required for demanding electronic circuits.
Feature Summary
- AEC-Q200 qualified for automotive reliability standards
- FlexiCap/Nickel Barrier termination technology for enhanced mechanical stability
- X7R dielectric material providing stable capacitance over temperature variations
Applications
- Automotive electronics systems requiring AEC-Q200 compliance
- High-reliability general-purpose circuit filtering
- Surface-mount assembly in compact electronic modules
Procurement Notes
Verify the exact part number against official manufacturer documentation to ensure compatibility with specific design requirements. Confirm that the FlexiCap termination and X7R dielectric meet the electrical specifications of the target application. Check current availability status as supply constraints may affect procurement timelines. Ensure storage and handling procedures align with MLCC best practices to maintain component integrity prior to assembly.
Selection Notes
Select this component when automotive qualification and mechanical robustness are primary requirements. The FlexiCap termination provides superior resistance to cracking during board flexing compared to standard terminations. The X7R dielectric offers higher volumetric efficiency than Class 1 materials while maintaining reasonable stability. Consider the 1812 footprint for space-constrained designs requiring moderate capacitance values at low voltage ratings.
Part Context
This component belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability capacitors for harsh environments. The Y-series designation typically indicates X7R dielectric characteristics within their portfolio. These parts are engineered to withstand significant mechanical stress, making them suitable for automotive and industrial applications where standard MLCCs might fail due to board warping or vibration.
Replacement Considerations
Direct substitutes must match the 1812 footprint, 20V rating, 3900pF capacitance, X7R dielectric, and AEC-Q200 qualification. Verify termination type compatibility if mechanical stress relief is critical. Cross-reference with other FlexiCap variants from Knowles Syfer or equivalent automotive-grade MLCCs from other manufacturers offering similar termination technologies.
