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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：2700 pF
- 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 1812Y5000272MSTE03 is a high-reliability multilayer ceramic capacitor (MLCC) in the FlexiCap series. It features a capacitance of 2700 pF with a ±20% tolerance and a DC voltage rating of 500 VDC. Utilizing X7R dielectric material, this component operates within a temperature range of -55°C to +125°C. The device is housed in an 1812 (4532 metric) surface-mount package with flexible soft terminals designed to withstand board flexing. It carries AEC-Q200 qualification for automotive applications.
Feature Summary
- Flexible soft terminal construction reduces stress on the capacitor body during PCB bending or thermal expansion.
- AEC-Q200 qualified for use in demanding automotive electronic environments.
- X7R dielectric provides stable capacitance characteristics across the specified operating temperature range.
Applications
- Automotive electronics requiring board-flex sensitive components
- High-reliability surface mount circuits
- General purpose MLCC applications in harsh environments
Procurement Notes
Verify the specific suffix MSTE03 against official datasheets to confirm the inclusion of the nickel barrier and X2Y configuration if applicable, as standard FlexiCap parts may differ. Confirm RoHS compliance status directly with the manufacturer documentation before integration into regulated assemblies.
Selection Notes
Select this part when board flex resistance is critical due to its soft termination technology. Ensure the circuit design accommodates the 500V DC rating and X7R dielectric properties. Verify that the 1812 footprint matches the target PCB layout constraints and that the ±20% tolerance meets the system requirements.
Part Context
This component belongs to the Knowles Syfer FlexiCap family, which specializes in high-reliability capacitors with flexible terminations. The 1812Y prefix indicates the 1812 case size and general product line. These devices are engineered to prevent cracking in applications subject to mechanical stress or significant thermal cycling.
Replacement Considerations
Publicly confirmed substitute part numbers for this specific model variant are not available in the provided source data. Consult official manufacturer cross-reference lists for verified alternatives.
