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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：8200 pF
- 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 1812Y5000822MXTE03 is a feed-through multilayer ceramic capacitor (MLCC) in the 1812 (4532 metric) surface-mount package. It features an 8200 pF capacitance with a 500 VDC rated voltage and X7R dielectric material. The component provides 20% tolerance and operates within a temperature range of -55°C to +125°C. Designed for high-frequency applications, it offers low equivalent series resistance (ESR) and inductance (ESL), ensuring effective electromagnetic interference (EMI) suppression.
Feature Summary
- Feed-through architecture providing superior high-frequency noise attenuation
- Low parasitic inductance and resistance for efficient signal integrity
- Flexible terminal construction to withstand board flexing stresses
Applications
- High-speed digital circuit power distribution networks
- RF and microwave module decoupling
- Automotive electronics requiring robust EMI filtering
Procurement Notes
Verify the specific suffix 'E03' against the manufacturer's current datasheet to confirm packaging details and compliance status. Ensure design compatibility with the feed-through footprint rather than standard MLCC pads. Confirm availability through authorized channels as supply levels may vary.
Selection Notes
Select this component when standard MLCCs fail to provide adequate high-frequency noise suppression due to parasitic inductance. The feed-through design is critical for applications demanding minimal impedance at GHz frequencies. Validate that the 500V rating meets the system's peak voltage requirements.
Part Context
This part belongs to the Knowles Syfer FlexiCap family, which integrates flexible terminations to enhance reliability in mechanically stressed environments. The 1812Y series specifically targets high-voltage applications, combining robust construction with advanced ceramic materials for stable performance across wide temperature ranges.
Replacement Considerations
Direct substitutes include other 1812 feed-through capacitors from Knowles Syfer or competitors like Murata and TDK. Verify pinout compatibility and ensure the replacement maintains the same low ESL characteristics required for the specific frequency band.
