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Product Detailed Parameters
- Description：CMC 20UH 4LN SMD
- Series：-
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：-
- Number of Lines：4
- Current Rating (Max)：-
- DC Resistance (DCR) (Max)：350mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.280" L x 0.207" W (7.11mm x 5.26mm)
- Height (Max)：0.160" (4.06mm)
- Package / Case：8-SOIC (0.280", 7.11mm Width)
- Inductance @ Frequency：20 µH @ 100 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 750510303 is a four-line common mode choke designed for surface mount applications. It features an inductance of 20 µH measured at 100 kHz and a DC resistance (DCR) of 350 mΩ. The component utilizes a SOIC-8 package with dimensions of 8 mm length, 5.26 mm width, and 4.06 mm height. It operates within a temperature range of -40°C to +85°C and complies with RoHS standards.
Feature Summary
- Four-line configuration for multi-conductor noise suppression
- Surface mount design compatible with automated assembly
- Compact SOIC-8 footprint for space-constrained layouts
Applications
- RF signal line filtering
- Digital interface noise suppression
- Common mode interference reduction in high-speed data lines
Procurement Notes
Verify the specific datasheet revision when sourcing, as manufacturer documentation may update electrical tolerances or pin configurations over time. Confirm that the SOIC-8 package dimensions align with your PCB land pattern requirements. Ensure the operating temperature range meets your system's environmental specifications before finalizing procurement.
Selection Notes
Select this component when managing noise on four parallel conductors requiring a compact solution. The 20 µH inductance provides effective attenuation for high-frequency interference. Consider the 350 mΩ DCR impact on signal integrity if low insertion loss is critical. The surface mount format simplifies integration into dense circuit boards compared to through-hole alternatives.
Part Context
This part belongs to the Würth Elektronik common mode filter series, specifically engineered for suppressing electromagnetic interference in digital and RF circuits. The four-line variant addresses scenarios where multiple signal lines require simultaneous noise mitigation within a single footprint, enhancing board efficiency.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing designs by matching inductance, current ratings, and package dimensions before considering alternative components.
