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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：100V
- 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 1812Y1000473MSTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features an 1812 package size with a capacitance of 0.047 µF and a DC voltage rating of 100 VDC. The component utilizes X7R dielectric material, offering a tolerance of ±20%. It is certified to AEC-Q200 standards for automotive use and incorporates FlexiCap technology with a nickel barrier electrode structure to enhance mechanical durability.
Feature Summary
- AEC-Q200 qualified for automotive electronics reliability requirements
- FlexiCap flexible terminal design reduces stress on the ceramic body
- Nickel barrier electrode construction prevents tin whisker formation
Applications
- Automotive electronic control units
- Board-flex sensitive circuit assemblies
- High-reliability industrial power systems
Procurement Notes
Verify the complete part number including the suffix MSTE03 to ensure correct termination and packaging specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check current availability as lead times may vary based on production schedules and regional distribution constraints.
Selection Notes
Select this component when automotive qualification and mechanical robustness are required in an 1812 footprint. The X7R dielectric provides stable performance across standard operating temperatures. Ensure the PCB layout accommodates the specific thermal profile needed for soldering flexible terminations without damaging the internal structure.
Part Context
This part belongs to the Knowles Syfer FlexiCap series, which specializes in capacitors with soft or flexible terminals to mitigate board flex-induced failures. The 1812Y prefix indicates the 1812 case size and general product line classification within the manufacturer's portfolio of high-performance ceramic capacitors.
Replacement Considerations
Direct substitutes must match the 1812 package, 100V rating, 0.047µF value, and X7R dielectric. Verify that alternative parts also feature nickel barrier electrodes if tin whisker prevention is critical. Cross-reference AEC-Q200 certification if the application mandates automotive-grade validation.
