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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：50V
- 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：4700 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 1812Y0500472MJTE03 is a high-reliability multilayer ceramic capacitor (MLCC) in the FlexiCap series. It features an X7R dielectric with a capacitance of 4700 pF and a tolerance of ±20%. Rated for 50 VDC, it operates within a temperature range of -55°C to +125°C. The component utilizes a 1812 (4532 metric) surface-mount package with flexible terminals designed to withstand board flexing.
Feature Summary
- Flexible terminal construction enhances reliability in board-flex sensitive applications
- X7R dielectric provides stable capacitance characteristics across the operating temperature range
- High-reliability design suitable for demanding electronic environments
Applications
- Automotive electronics requiring AEC-Q200 compliance
- Board-flex sensitive circuit designs
- General-purpose high-reliability MLCC applications
Procurement Notes
Verify the specific suffix configuration against official datasheets to ensure correct terminal type and termination material specifications. Confirm availability status as supply may be restricted or subject to long lead times. Ensure compatibility with existing PCB footprint and reflow soldering profiles before integration into production lines.
Selection Notes
Select this component when board flex resistance is critical due to its flexible terminal technology. The X7R dielectric offers a balance of capacitance density and stability. Verify that the 1812 package dimensions fit the design constraints and that the 50V rating meets the circuit voltage requirements with appropriate derating margins.
Part Context
This part belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability capacitors with flexible terminations. The series targets automotive and industrial sectors where mechanical stress from board flexing can cause traditional MLCC failures. The 1812Y base code indicates the standard size and voltage class family.
Replacement Considerations
Direct substitutes must match the 1812 package, 50V rating, 4700pF value, X7R dielectric, and flexible terminal feature. Generic X7R 1812 capacitors without flexible terminals are not suitable replacements for board-flex sensitive designs.
