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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：50V
- 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：0.4 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 1812Y0500404MSTE03 is a feedthrough capacitor with a capacitance of 0.4 µF (400 nF) and a DC voltage rating of 50 V. It utilizes X7R dielectric material with a tolerance of ±20%. The component features an X2Y architecture and employs FlexiCap technology with a nickel barrier for terminal construction. It operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.
Feature Summary
- X2Y three-terminal architecture providing integrated filtering capabilities
- FlexiCap soft termination design with nickel barrier to enhance board flex reliability
- AEC-Q200 qualified for automotive electronic applications
Applications
- Automotive electronics requiring AEC-Q200 compliance
- Power supply input/output filtering
- Signal line noise suppression in sensitive circuits
Procurement Notes
Verify the specific suffix MSTE03 against official datasheets to confirm the FlexiCap/Nickel Barrier configuration. Ensure compatibility with PCB footprint requirements for 1812 feedthrough packages. Confirm RoHS compliance status through current manufacturer documentation before integration.
Selection Notes
Select this component when high capacitance density is required in a small 1812 package alongside EMI filtering needs. The X2Y topology offers superior common-mode noise rejection compared to standard MLCCs. 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 1812Y series, which focuses on high-reliability ceramic capacitors. The Y series typically denotes specific dielectric and termination combinations optimized for robust performance in demanding environments, including automotive and industrial sectors.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Verify pinout and electrical specifications carefully when considering alternative feedthrough capacitors from other manufacturers.
