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Product Detailed Parameters
- Description：CMC 100UH 200MA 2LN 5.8KOHM SMD
- Series：CM
- Mfr：Laird-Signal Integrity Products
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：200mA
- DC Resistance (DCR) (Max)：2Ohm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 150°C
- Ratings：AEC-Q200
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.177" L x 0.126" W (4.50mm x 3.00mm)
- Height (Max)：0.110" (2.80mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：100 µH @ 100 kHz
- Impedance @ Frequency：5.8 kOhms @ 10 MHz
- Qualification：-
- Grade：-
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Overview
The CM1812B104R-1A is a surface-mount common mode choke from the Laird CM series, designed for automotive signal lines. It features a magnetic wire-wound structure providing superior common-mode noise suppression over a broadband frequency range. The component has an inductance of 100 µH at 100 kHz and an impedance of 5.8 kOhms at 10 MHz. Rated for a maximum current of 200mA with a DC resistance of 2 Ohms, it operates within a temperature range of -55°C to 150°C. The package dimensions are 4.50mm x 3.00mm.
Feature Summary
- Magnetic wire-wound structure for broadband common-mode noise suppression
- Automotive-grade reliability with AEC-Q200 qualification
- High operating temperature range suitable for harsh environments
Applications
- Automotive CAN-Bus signal line filtering
- Embedded communication applications
- Broadband noise suppression in automotive electronics
Procurement Notes
Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with current production requirements. Confirm RoHS compliance status and packaging options directly with authorized distributors, as availability may vary by region and lot date code.
Selection Notes
Select this component for applications requiring high inductance and robust noise attenuation in compact surface-mount layouts. Ensure the 200mA current rating meets the circuit's operational demands. Consider the 150°C maximum junction temperature for thermal management in enclosed automotive enclosures.
Part Context
This part belongs to the Laird CM1812 series of automotive common mode chokes. These components are engineered to improve performance and reliability in vehicle electronic systems. The series offers various inductance values tailored for different signal integrity needs while maintaining a standardized footprint for easy integration into existing PCB designs.
Replacement Considerations
Check for direct substitutes within the CM1812 series with matching inductance and current ratings. Verify that any alternative component maintains AEC-Q200 qualification if automotive use is required. Ensure physical dimensions and pin configurations are compatible with the existing board layout.
