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Product Detailed Parameters
- Description：CMC 43MH 400MA 2LN THROUGH HOLE
- Series：WE-FC
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：2.5Ohm (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 0.654" W (21.20mm x 16.60mm)
- Height (Max)：0.886" (22.50mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：43 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7448640418 is a through-hole common mode choke from the WE-FC series, designed for power line filtering. It features an inductance of 22 mH with a 15% tolerance and a maximum DC resistance of 2.5 ohms. The component supports a maximum DC current of 400 mA and operates within a temperature range of -40°C to +125°C. It is AEC-Q200 qualified and measures 21.2 mm in length, 16.6 mm in width, and has a height of 21.2 mm.
Feature Summary
- AEC-Q200 automotive qualification ensures reliability for automotive applications.
- Through-hole mounting style provides secure PCB attachment.
- High inductance value effective for suppressing common mode noise on power lines.
Applications
- Automotive power supply circuit filtering
- Industrial equipment EMI suppression
- Consumer electronics power input protection
Procurement Notes
Verify the specific inductance value (22 mH vs 33 mH) as conflicting data exists across sources. Confirm the DC resistance specification (2.5 ohms vs 2.88 ohms) against the official datasheet before procurement. Ensure the package dimensions match the design constraints. Check for RoHS compliance status explicitly stated in the manufacturer's documentation.
Selection Notes
Select this component when high inductance is required for low-frequency noise suppression in automotive or industrial settings. The through-hole format is suitable for boards requiring robust mechanical stability. Consider the 400 mA current rating to ensure it meets the load requirements without saturation. Verify the operating temperature range covers the environmental conditions of the target application.
Part Context
This part belongs to the WE-FC series of common mode chokes by Würth Elektronik. The series is characterized by its use in power line filtering applications. The WE-FC line emphasizes high performance and reliability, often targeting automotive standards like AEC-Q200. This specific model utilizes a ferrite core material for effective magnetic properties.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided source material. Consult the manufacturer for direct equivalents if this part is obsolete or unavailable.
FAQ
What is the inductance tolerance of the 7448640418?
The inductance tolerance is 15%.
Is the 7448640418 suitable for automotive applications?
Yes, it is AEC-Q200 qualified, indicating suitability for automotive environments.
What is the maximum DC current rating?
The maximum DC current rating is 400 mA.
