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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：0.047 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 1812Y0500473MSTE03 is a surface-mount feed-through capacitor with a capacitance of 0.047 µF and a DC voltage rating of 50 V. It utilizes X7R dielectric material and operates within a temperature range of -55 °C to +125 °C. The component features a 1812 (4532 metric) package size, three-pad configuration, and an AEC-Q200 qualification. It incorporates FlexiCap technology with a nickel barrier for enhanced reliability.
Feature Summary
- Three-terminal feed-through architecture providing integrated filtering capabilities
- FlexiCap termination technology combined with a nickel barrier layer
- AEC-Q200 automotive grade qualification ensuring high reliability
Applications
- Automotive electronic systems requiring EMI suppression
- High-reliability industrial circuit protection
- Signal line filtering in harsh environmental conditions
Procurement Notes
Verify the specific suffix MSTE03 against official datasheets to confirm the inclusion of FlexiCap and nickel barrier features. Ensure compatibility with 1812 footprint designs. Confirm AEC-Q200 status if automotive compliance is required. Check current availability as distribution may vary by region.
Selection Notes
Select this component when space-constrained EMI filtering is needed in automotive or industrial applications. The three-terminal design offers superior high-frequency performance compared to standard two-terminal capacitors. Verify that the 50V rating and 0.047µF value meet the circuit requirements.
Part Context
This part belongs to the Knowles Syfer 1812 series of feed-through capacitors. It is distinct from standard MLCCs due to its internal structure designed for noise suppression. The model number indicates the 1812 case size, 50V rating, and specific terminal construction.
Replacement Considerations
Direct substitutes must match the 1812 footprint, 50V rating, 0.047µF capacitance, and three-terminal feed-through topology. Verify equivalent AEC-Q200 certification and FlexiCap/nickel barrier specifications for identical reliability standards.
