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Product Detailed Parameters
- Description：CMC 100MH 1.25A 2LN TH
- Series：WE-FCL
- Mfr：Würth Elektronik
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：1.25A
- DC Resistance (DCR) (Max)：900mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.457" L x 1.024" W (37.00mm x 26.00mm)
- Height (Max)：1.772" (45.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：100 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744866104 is a through-hole common mode choke from the WE-FCL series, designed for power line filtering. It features an inductance of 100 mH at 10 kHz with a tolerance range of -30% to +50%. The component supports a maximum DC current of 1.25 A and has a maximum DC resistance of 900 milliohms. Rated for AC voltages up to 250 V, it operates within a temperature range of -40°C to +125°C. The physical dimensions are 37.00 mm in length, 26.00 mm in width, and a maximum height of 45.00 mm.
Feature Summary
- Provides effective common mode noise suppression for power lines using ferrite core technology.
- Constructed with radial through-hole pins for secure PCB mounting.
- Engineered to withstand high operating temperatures up to 125°C.
Applications
- Power supply input filtering
- EMI suppression in electronic equipment
- AC mains line protection
Procurement Notes
Verify component authenticity by checking manufacturer markings against official datasheets. Confirm that the part number matches exactly, as this specific model is listed as obsolete. Ensure replacement components meet identical electrical specifications and mechanical footprint requirements before integration into designs.
Selection Notes
Select this component when designing circuits requiring robust common mode noise attenuation on power lines. The 100 mH inductance value is suitable for lower frequency interference suppression. Verify that the 1.25 A current rating aligns with the circuit's operational load to prevent saturation or excessive heating during continuous use.
Part Context
This component belongs to the WE-FCL series of common mode chokes manufactured by Würth Elektronik. These devices are specialized for electromagnetic interference reduction in power applications. The series utilizes ferrite cores to achieve high inductance values while maintaining compact physical profiles suitable for various industrial and consumer electronics assemblies.
Replacement Considerations
The manufacturer recommends part number 7448050219 as a direct substitute. Verify compatibility regarding pin configuration and electrical ratings before implementation.
FAQ
Is the 744866104 currently in production?
No, the component is classified as obsolete and no longer manufactured.
What is the recommended substitute for this part?
Würth Elektronik recommends part number 7448050219 as the alternative.
