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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：0.047 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 1812J2000473MXTE03 is a feed-through multilayer ceramic capacitor designed for high-frequency noise suppression. It features a capacitance of 0.047 µF and a voltage rating of 200 VDC. The component operates within a temperature range of -55°C to +125°C and includes an integrated current rating of 50 mA. Housed in an 1812 (4532 metric) surface-mount package, it provides efficient electromagnetic interference filtering for compact electronic designs.
Feature Summary
- Integrates feed-through architecture for direct signal line noise attenuation
- Provides stable capacitance performance across extended industrial temperature ranges
- Supports continuous DC current handling up to 50 mA
Applications
- High-frequency noise suppression in RF signal paths
- Electromagnetic interference filtering in compact power supplies
- Signal integrity protection in telecommunications equipment
Procurement Notes
Verify the complete part number including the E03 suffix to ensure correct feed-through configuration. Confirm that the 50 mA current rating meets circuit requirements. Check RoHS compliance status via official documentation before integration. Ensure PCB layout accommodates the specific thermal and electrical characteristics of this feed-through topology.
Selection Notes
Select this component when simultaneous high-frequency filtering and current carrying capability are required in a single surface-mount device. The 1812 footprint offers a balance between capacitance density and physical size. Consider the 200V rating for applications requiring moderate voltage isolation alongside noise reduction.
Part Context
This component belongs to the Knowles Syfer feed-through capacitor series, which combines multilayer ceramic technology with internal conductor structures. Unlike standard MLCCs, these devices integrate the capacitor directly into the signal path, offering superior high-frequency performance and reduced parasitic inductance for effective EMI management.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with existing footprints and electrical specifications if considering alternative manufacturers.
