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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：0.033 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 1812Y2000333MSTE03 is a feed-through ceramic capacitor with a capacitance of 0.033 µF and a voltage rating of 200 VDC. It operates within a temperature range of -55°C to +125°C and features a 1812 (4532 metric) surface-mount package. The component integrates a nickel barrier structure and supports a maximum current of 50 mA, designed for high-reliability applications requiring robust electromagnetic interference suppression.
Feature Summary
- Integrates X2Y architecture for enhanced common-mode noise attenuation
- Features a nickel barrier construction for improved mechanical stability
- Designed as a feed-through device to minimize parasitic inductance
Applications
- Automotive electronics requiring AEC-Q200 compliance
- Board-flex sensitive circuit designs
- High-frequency signal line filtering
Procurement Notes
Verify the specific suffix MSTE03 against official datasheets to confirm the inclusion of the nickel barrier and X2Y configuration. Ensure compatibility with board flex requirements and confirm that the 50 mA current rating meets system specifications before finalizing procurement decisions.
Selection Notes
Select this component when standard MLCCs fail to provide sufficient noise suppression or mechanical resilience. The feed-through design offers superior performance over discrete components by reducing loop area. Verify that the 1812 footprint aligns with existing PCB layout constraints and thermal management strategies.
Part Context
This part belongs to the Knowles Syfer FlexiCap series, which utilizes specialized electrode structures to enhance durability under mechanical stress. The 1812Y prefix indicates a general-purpose ceramic capacitor family optimized for automotive and industrial environments where reliability is critical.
Replacement Considerations
Direct substitutes are limited due to the proprietary X2Y feed-through structure. Evaluate other Knowles Syfer feed-through capacitors with matching capacitance and voltage ratings if pinout compatibility allows.
