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Product Detailed Parameters
- Description：MLC
- Series：EMI Filter
- Mfr：Knowles Syfer
- Package：Tape & Reel (TR)
- Voltage - Rated：100V
- Current：50 mA
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：1206 (3216 Metric), 3 PC Pad
- Size / Dimension：0.126" L x 0.063" W (3.20mm x 1.60mm)
- Capacitance：1200 pF
- Tolerance：±20%
- DC Resistance (DCR) (Max)：-
- Insertion Loss：-
- Temperature Coefficient：X7R
- Ratings：-
- Height (Max)：0.051" (1.30mm)
- Thread Size：-
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Overview
The Knowles Syfer 1206Y1000122MSTE03 is a multilayer ceramic capacitor (MLCC) in a 1206 surface-mount package. It features a capacitance of 2.2 nF with a tolerance of ±20% and a DC voltage rating of 100 V. The dielectric material is X7R, providing stability across an operating temperature range of -55°C to +125°C. This component incorporates FlexiCap technology with a nickel barrier for enhanced reliability.
Feature Summary
- FlexiCap soft termination design reduces stress on terminations during board flexing
- Nickel barrier layer prevents tin whisker growth and enhances solderability
- X7R dielectric provides stable capacitance characteristics over the rated temperature range
Applications
- Automotive electronics requiring AEC-Q200 qualification
- Circuit boards sensitive to mechanical flexure
- High-reliability industrial control systems
Procurement Notes
Verify the complete part number including the suffix STE03 to ensure correct termination and barrier specifications. Confirm RoHS compliance status and specific manufacturing lot traceability requirements before ordering. Check current availability as supply may be restricted in certain regions.
Selection Notes
Select this component when board flex resistance is critical due to its soft termination structure. The X7R dielectric offers higher volumetric efficiency than C0G types but exhibits greater capacitance variation with voltage and temperature compared to NP0. Ensure the 1206 footprint matches the PCB layout constraints.
Part Context
This part belongs to the Knowles Syfer 1206Y series of high-reliability MLCCs. The Y designation indicates the 1206 metric case size, while the subsequent digits define the electrical parameters. The STE03 suffix specifically denotes the FlexiCap termination system with nickel barrier construction.
Replacement Considerations
Direct substitutes must match the 1206 footprint, 100V rating, 2.2nF value, X7R dielectric, and FlexiCap/Nickel Barrier termination type. Generic X7R capacitors without soft termination are not suitable replacements for flex-sensitive applications.
