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Product Detailed Parameters
- Description：CMC 820UH 2A 2LN TH
- Series：WE-FC
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：2A
- DC Resistance (DCR) (Max)：70mOhm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.835" L x 0.835" W (21.20mm x 21.20mm)
- Height (Max)：0.701" (17.80mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：820 µH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7448640395 is a through-hole common mode choke from the WE-FC series, designed for power line applications. It features an inductance of 820 µH at 10 kHz and supports a maximum DC current of 2.6 A. The component has a typical DC resistance of 70 mΩ (maximum 0.08 Ω) and operates within a temperature range of -40°C to +125°C. It is AEC-Q200 qualified and utilizes a vertical package with four pins.
Feature Summary
- AEC-Q200 automotive qualification for reliability
- Vertical through-hole mounting configuration
- Power line noise suppression capability
Applications
- Automotive power supply filtering
- Industrial equipment EMI suppression
- General purpose power line chokes
Procurement Notes
Verify the specific datasheet revision when ordering, as product change notifications may affect physical dimensions or electrical tolerances. Confirm that the vertical pin configuration matches the PCB footprint requirements. Ensure the thermal environment stays within the specified operating range to maintain performance stability over the component's lifecycle.
Selection Notes
Select this component for designs requiring robust automotive-grade filtering on power lines. The 820 µH value provides effective attenuation for common mode noise while maintaining low insertion loss due to the low DC resistance. Consider the physical size constraints of the vertical package during layout planning.
Part Context
This part belongs to the WE-FC series of common mode chokes manufactured by Würth Elektronik. The series is characterized by high saturation currents and low DC resistance, making it suitable for demanding power electronics applications where space efficiency and thermal performance are critical design factors.
Replacement Considerations
Check for direct substitutes within the same WE-FC series with similar inductance and current ratings. Verify pin compatibility and mechanical dimensions before substituting with components from other manufacturers to ensure proper fit and function.
