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Product Detailed Parameters
- Description：CMC 200MA 2LN 2.82 KOHM SMD
- Series：CM
- Mfr：Laird-Signal Integrity Products
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：2
- Current Rating (Max)：200mA
- DC Resistance (DCR) (Max)：500mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.205" L x 0.138" W (5.20mm x 3.50mm)
- Height (Max)：0.140" (3.55mm)
- Package / Case：1812 (4532 Metric), 4 Leads
- Inductance @ Frequency：-
- Impedance @ Frequency：2.82 kOhms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The CM1812C282R-10 is a surface-mount common mode filter choke manufactured by Laird-Signal Integrity Products. It features two lines with an impedance of 2.8 kOhms at 100 MHz and a maximum DC current rating of 200 mA. The component has a maximum DC resistance (DCR) of 500 mOhms and operates within a temperature range of -40°C to +125°C. Its physical dimensions are 5 mm in length, 3.5 mm in width, and 3.55 mm in height, housed in an 1812 package.
Feature Summary
- Provides common mode noise suppression for differential signal lines
- Designed for surface mount PCB integration
- Operates reliably across extended industrial temperature ranges
Applications
- High-speed data interface filtering
- USB port protection circuits
- HDMI signal line conditioning
Procurement Notes
Verify the specific suffix designation during procurement, as it may indicate variations in packaging or compliance status compared to standard configurations. Confirm RoHS compliance details through official manufacturer documentation prior to integration. Ensure the selected variant matches the required impedance and current ratings for the target application circuit design.
Selection Notes
Select this component when designing circuits requiring common mode noise attenuation for high-speed digital interfaces. Evaluate the 200 mA current rating against peak operational loads to prevent saturation. Consider the 1812 footprint constraints and verify that the 500 mOhm DCR aligns with signal integrity requirements for the specific transmission line topology.
Part Context
This component belongs to the Laird Signal Integrity Products portfolio, focusing on electromagnetic interference mitigation. It serves as a passive filtering element within electronic assemblies, specifically targeting high-frequency noise reduction in sensitive communication pathways without significantly impacting the desired differential signal transmission characteristics.
Replacement Considerations
Direct substitute part numbers are not explicitly confirmed in the provided source material. Verify compatibility with alternative components by matching impedance curves, current ratings, and physical footprint dimensions.
