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Product Detailed Parameters
- Description：CMC 3MH 4.5A 2LN TH
- Series：WE-CMBNC
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：4.5A
- DC Resistance (DCR) (Max)：22mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.709" L x 0.551" W (18.00mm x 14.00mm)
- Height (Max)：0.866" (22.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：3 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7448024503 is a through-hole common mode filter choke from the WE-CMBNC series. It features a nanocrystalline core with a nominal inductance of 3 mH and a maximum DC resistance of 22 mΩ. The component supports a current rating of 4.5 A and an AC voltage rating of 250 V. It operates within a temperature range of -40°C to +125°C and holds AEC-Q200 automotive qualification.
Feature Summary
- Utilizes a high-permeability nanocrystalline core for effective noise suppression
- Designed for through-hole mounting on printed circuit boards
- Automotive-grade reliability certified under AEC-Q200 standards
Applications
- Automotive electronic systems requiring EMI filtering
- Power supply input stages for noise reduction
- Signal lines in automotive infotainment units
Procurement Notes
Verify the specific ordering suffix against the manufacturer datasheet to confirm pin configuration and tolerance levels. Ensure the selected variant matches the required current rating and inductance value for the target circuit design. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.
Selection Notes
Select this component when high magnetic permeability and compact size are required for automotive applications. The nanocrystalline core offers superior performance compared to traditional ferrite materials at lower frequencies. Consider the 4.5 A current rating and low DC resistance to minimize power loss in high-current paths.
Part Context
This part belongs to the WE-CMBNC series, which focuses on common mode chokes for automotive electronics. The series utilizes nanocrystalline technology to provide high inductance values in small packages. These components are designed to meet the stringent reliability and environmental standards required by the automotive industry.
Replacement Considerations
Check for direct substitutes within the WE-CMBNC series that offer similar inductance and current ratings. Verify that any alternative component maintains AEC-Q200 certification if automotive use is intended. Ensure physical dimensions and terminal compatibility match the existing PCB layout.
