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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：0.018 µF
- 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 1812Y2000183MSTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability automotive applications. It features an X7R dielectric with a capacitance of 18.00 nF and a tolerance of ±20%. The component is rated for a DC voltage of 200V and operates within a temperature range of -55°C to +125°C. It complies with the AEC-Q200 qualification standard, ensuring robustness in demanding environments. The device utilizes FlexiCap technology with a nickel barrier electrode structure to enhance mechanical durability.
Feature Summary
- AEC-Q200 qualified for automotive reliability standards
- FlexiCap technology with nickel barrier electrodes for enhanced board flex resistance
- X2Y architecture providing integrated common-mode noise suppression
Applications
- Automotive electronic control units (ECUs)
- Powertrain and chassis systems
- Infotainment and connectivity modules
Procurement Notes
Verify the specific suffix MSTE03 against official datasheets to confirm the inclusion of the nickel barrier and X2Y configuration. Ensure that the AEC-Q200 certification requirements align with your project's quality standards. Confirm package dimensions and termination compatibility during the layout phase to prevent assembly issues.
Selection Notes
Select this component when high-frequency noise filtering is required alongside high-voltage handling in automotive circuits. The X2Y design offers superior electromagnetic interference reduction compared to standard capacitors. Consider the FlexiCap feature if the application involves significant mechanical stress or board flexing during operation.
Part Context
This part belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability MLCCs for automotive use. The 1812Y prefix indicates a 200V rating within the family. The X2Y designation signifies a three-terminal structure that integrates two capacitors into one package for efficient space utilization and improved performance.
Replacement Considerations
Direct substitutes must match the 1812 footprint, 200V rating, 18nF value, and X2Y topology. Verify AEC-Q200 compliance and FlexiCap construction in alternative parts to ensure equivalent mechanical and electrical performance.
