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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：0.27 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 1812Y0500274MJTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features an X7R dielectric with a capacitance of 270 nF and a voltage rating of 50 VDC. The component utilizes a FlexiCap termination system with a nickel barrier to enhance mechanical robustness against stress. It is certified to AEC-Q200 standards, ensuring suitability for automotive environments. The device operates within a temperature range of -55°C to +125°C and is housed in a standard 1812 (4532 metric) package.
Feature Summary
- X2Y architecture providing integrated common-mode noise suppression
- FlexiCap termination technology for improved shock and vibration resistance
- Nickel barrier layer preventing electrode migration
- AEC-Q200 qualified for automotive reliability requirements
Applications
- Automotive electronic control units
- Infotainment systems
- Sensor interface circuits
- Power supply filtering in vehicles
Procurement Notes
Verify the complete part number including suffixes to ensure correct termination and tolerance specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check for specific handling instructions related to the FlexiCap terminations during assembly processes.
Selection Notes
Select this component when combined decoupling and filtering functions are required in a single footprint. The X2Y design reduces board space compared to discrete components. Ensure the operating voltage does not exceed 50 VDC and verify that the X7R temperature characteristics align with the circuit's thermal environment.
Part Context
This component belongs to the Knowles Syfer 1812Y series, which focuses on high-reliability MLCCs for demanding sectors. The Y-series typically denotes specific termination and barrier technologies aimed at extending service life in harsh conditions. It represents a specialized solution within the broader ceramic capacitor market.
Replacement Considerations
Direct substitutes must match the 1812 footprint, 50V rating, 270nF capacitance, and X2Y topology. Verify that alternative parts also feature FlexiCap or equivalent flexible terminations if mechanical stress is a concern. Cross-reference AEC-Q200 certification if automotive qualification is mandatory.
