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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：0.047 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 1812J5000473MXTE03 is a surface-mount X2Y feed-through capacitor with a capacitance of 0.047 µF and a voltage rating of 500 VDC. It utilizes an X7R dielectric material housed in an 1812 (4532 metric) package. The component features a three-pad footprint design that enables simultaneous suppression of differential and common-mode noise. It operates within a temperature range of -55°C to +125°C and includes a nickel barrier with 100% tin termination.
Feature Summary
- X2Y architecture provides integrated differential and common-mode noise filtering
- Feed-through topology reduces parasitic inductance for high-frequency performance
- Three-pad surface mount footprint simplifies PCB layout
Applications
- High-speed digital signal line protection
- Power supply input/output filtering
- EMI suppression in compact electronic modules
Procurement Notes
Verify the specific suffix MXTE03 against official manufacturer documentation to confirm the exact termination plating and packaging configuration. Ensure the selected variant matches the required lead-free compliance standards and moisture sensitivity level for the intended assembly process.
Selection Notes
Select this component when space-constrained designs require combined differential and common-mode filtering. The X2Y structure offers superior high-frequency attenuation compared to standard MLCCs. Confirm that the 500V rating and 0.047µF value align with the circuit's electrical requirements and thermal operating conditions.
Part Context
This part belongs to the Knowles Syfer X2Y series, which integrates two capacitors and one inductor into a single monolithic ceramic structure. The series is designed for applications demanding effective EMI suppression in minimal board space. The 1812J5000473MXTE03 specifically targets high-voltage environments requiring robust noise control.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with alternative X2Y components by matching capacitance, voltage rating, package dimensions, and terminal configuration.
