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Product Detailed Parameters
- Description：MULTI-LAYERED CERAMIC CAPACITOR
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：25V
- Current：2:00 AM
- 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：1.8 µF
- Tolerance：±20%
- DC Resistance (DCR) (Max)：-
- Insertion Loss：-
- Temperature Coefficient：X7R
- Ratings：-
- Height (Max)：0.091" (2.30mm)
- Thread Size：-
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Overview
The Knowles Syfer 1812J0250185MXTE07 is a high-reliability multilayer ceramic feed-through capacitor designed for surface-mount applications. It features an X7R dielectric with a capacitance of 1.8 µF and a DC voltage rating of 25 VDC. The component operates within a temperature range of -55°C to +125°C and exhibits a tolerance of ±20%. Housed in a standard 1812 (4532 metric) package, it utilizes a three-terminal EMI filter structure with nickel barrier and 100% tin terminations.
Feature Summary
- Three-terminal EMI filter architecture for effective noise suppression
- High-reliability construction suitable for demanding environments
- X7R dielectric material providing stable capacitance characteristics
Applications
- Electromagnetic interference filtering in electronic circuits
- Power supply input/output decoupling
- Signal line noise suppression
Procurement Notes
Verify the specific termination finish and internal electrode structure against the official datasheet to ensure compatibility with your soldering process. Confirm that the 1812 footprint matches your PCB design constraints. Check for any recent manufacturing changes or obsolescence notices from Knowles Syfer before finalizing procurement plans.
Selection Notes
Select this component when a low-profile, high-capacitance EMI filter is required in a 1812 package. Ensure the 25V rating meets the circuit's maximum operating voltage. Consider the thermal stability of the X7R dielectric if the application involves significant temperature fluctuations.
Part Context
This part belongs to the Knowles Syfer 1812J series of high-reliability MLCCs. The 'J' indicates the 1812 case size, while '025' denotes the 25V rating. The '185' suffix typically corresponds to the 1.8µF value. This series is engineered for robust performance in industrial and automotive-grade applications requiring stringent reliability standards.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Verify pinout and electrical specifications carefully if considering alternative manufacturers.
