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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：0.012 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 1812Y2000123MSTE03 is a multilayer ceramic capacitor (MLCC) in an 1812 surface-mount package. It features X7R dielectric with a capacitance of 12,000 pF and a voltage rating of 200 VDC. The component offers ±20% tolerance and operates within a temperature range of -55°C to +125°C. It incorporates FlexiCap technology for enhanced board flex sensitivity and includes a nickel barrier electrode structure.
Feature Summary
- FlexiCap technology provides improved reliability on flexible printed circuit boards
- Nickel barrier electrode structure ensures compatibility with lead-free soldering processes
- X2Y architecture integrates decoupling and filtering functions within a single compact component
Applications
- Automotive electronics requiring AEC-Q200 qualification
- High-density circuit boards subject to mechanical stress
- Noise suppression in sensitive signal lines
Procurement Notes
Verify the specific suffix configuration against official datasheets to confirm electrode materials and termination types. Ensure design compatibility with the required thermal profile during assembly. Confirm availability status through authorized distributors as supply levels may vary by region.
Selection Notes
Select this component when board flex resistance is critical for the application. The X7R dielectric provides stable performance across the specified temperature range. Consider the 1812 footprint constraints and verify that the 200V rating meets the circuit requirements.
Part Context
This part belongs to the Knowles Syfer FlexiCap series, designed for robust performance in demanding environments. The 1812Y series specifically targets applications requiring high reliability and mechanical durability. It represents a specialized solution within the broader MLCC portfolio for automotive and industrial sectors.
Replacement Considerations
Check for direct substitutes within the same FlexiCap family with matching voltage and capacitance values. Verify that any alternative maintains the X2Y functionality and nickel barrier construction to ensure process compatibility.
