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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：500V
- 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 1812Y5000473MSTE03 is a high-reliability multilayer ceramic capacitor (MLCC) designed for surface-mount technology. It features an X7R dielectric material and offers a capacitance of 0.047 µF with a DC voltage rating of 500 VDC. The component utilizes the 1812 (4532 metric) case size and incorporates FlexiCap/Nickel Barrier termination technology to enhance mechanical robustness. Certified to AEC-Q200 standards, it operates within a temperature range of -55°C to +125°C and provides a current rating of 50 mA.
Feature Summary
- X2Y architecture providing integrated common-mode noise filtering capabilities
- FlexiCap/Nickel Barrier terminations for improved solder joint reliability under thermal stress
- AEC-Q200 qualification ensuring suitability for automotive electronic environments
Applications
- Automotive power supply circuits requiring high reliability
- High-voltage decoupling in automotive control modules
- Common-mode noise suppression in sensitive automotive electronics
Procurement Notes
Verify the specific suffix MSTE03 to confirm the inclusion of FlexiCap/Nickel Barrier terminations and AEC-Q200 certification. Ensure the procurement documentation explicitly states the 50 mA current rating and 500 VDC voltage handling capability. Confirm that the component matches the 1812 footprint dimensions for PCB integration.
Selection Notes
Select this component when both high voltage isolation and electromagnetic interference suppression are required in a single package. The X2Y design reduces board space compared to discrete filter components. Verify that the operating environment does not exceed the 125°C maximum junction temperature limit.
Part Context
This part belongs to the Knowles Syfer high-reliability MLCC family, specifically engineered for demanding applications. The Y series designation typically indicates high-voltage capabilities, while the MSTE03 suffix denotes specialized termination and packaging configurations distinct from standard commercial grade capacitors.
Replacement Considerations
Direct substitutes must match the 1812 footprint, 500V rating, 0.047µF value, and X2Y topology. Generic X7R capacitors lack the integrated filtering and FlexiCap reliability. Verify cross-reference availability with other manufacturers offering AEC-Q200 qualified X2Y devices.
