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Product Detailed Parameters
- Description：CMC 55A 2LN 99 OHM TH
- Series：CM
- Mfr：Laird-Signal Integrity Products
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：55A
- DC Resistance (DCR) (Max)：0.3mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.540" L x 0.410" W (13.72mm x 10.41mm)
- Height (Max)：0.610" (15.49mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：-
- Impedance @ Frequency：99 Ohms @ 4 MHz
- Qualification：-
- Grade：-
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Overview
The CM5441Z990B-00 is a common mode choke from the Laird CM5441 Series, designed for ultra-high current applications. It features a two-line configuration with a maximum current rating of 55A and a DC resistance (DCR) of 0.3 milliohms maximum. The component exhibits an impedance of 99 ohms at 4MHz. It utilizes a through-hole mounting type and measures 0.540 inches in length by 0.410 inches in width.
Feature Summary
- Provides power filtering with a small form factor design suitable for high-performance requirements.
- Engineered to handle ultra-high current loads up to 55A while maintaining low DC resistance.
- Offers economical signal integrity solutions for common mode noise suppression.
Applications
- High-current power line filtering
- Signal integrity management in dense electronic assemblies
- Common mode noise suppression in power circuits
Procurement Notes
Verify the specific datasheet version before procurement, as Laird-Signal Integrity Products may update component specifications over time. Confirm that the through-hole package dimensions align with your PCB footprint requirements. Ensure the 55A current rating meets your system's peak load demands without saturation. Check for any recent product change notices or end-of-life announcements directly from the manufacturer to avoid supply chain disruptions during production.
Selection Notes
Select this component when designing circuits requiring robust common mode rejection with minimal voltage drop across the filter. The low DCR of 0.3 milliohms makes it suitable for high-efficiency power paths where thermal management is critical. Consider the 99 ohm impedance at 4MHz to ensure effective attenuation of high-frequency noise within your specific electromagnetic interference spectrum requirements.
Part Context
This part belongs to the Laird CM5441 Series, which specializes in ultra-high current common mode chokes. The series focuses on delivering high performance in a compact footprint, balancing electrical efficiency with physical space constraints. These components are integral to modern power electronics where signal purity and power delivery stability are paramount.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official Laird catalogs for direct equivalents within the CM5441 family or similar high-current common mode choke series.
