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Product Detailed Parameters
- Description：CMC 32UH 8.5A 2LN TH
- Series：WE-CMB
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：8.5A
- DC Resistance (DCR) (Max)：8.3mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.728" L x 0.571" W (18.50mm x 14.50mm)
- Height (Max)：0.866" (22.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：32 µH @ 100 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744842632 is a WE-CMB NiZn common mode power line choke designed for through-hole mounting. It features an inductance of 32 µH at 100 kHz and supports a maximum DC current rating of 5.5 A. The component has a maximum DC resistance of 8.3 mΩ and withstands up to 1500 VAC. It operates within a temperature range of -40 °C to +125 °C, providing reliable noise suppression for power lines.
Feature Summary
- Utilizes NiZn ferrite material for effective high-frequency noise attenuation
- Designed for robust through-hole PCB integration
- Rated for high voltage isolation up to 1500 VAC
Applications
- Power line filtering in industrial equipment
- Noise suppression in automotive electronics
- EMI reduction in consumer appliance power supplies
Procurement Notes
Verify the specific suffix against official Wurth documentation to confirm exact electrical tolerances and packaging configurations. Ensure the procurement channel provides valid RoHS compliance certificates. Cross-reference the manufacturer part number with authorized distributor lists to avoid counterfeit components. Confirm that the received units match the specified 32 µH inductance and 5.5 A current ratings before integration into production.
Selection Notes
Select this component when high-frequency common mode noise rejection is required in power circuits. The NiZn core material offers superior performance at higher frequencies compared to MnZn alternatives. The through-hole package provides mechanical stability for applications subject to vibration. Ensure the circuit design accommodates the 8.3 mΩ DC resistance and 5.5 A current handling capability without exceeding thermal limits.
Part Context
This component belongs to the WE-CMB series from Würth Elektronik, which specializes in common mode chokes for power line applications. The series utilizes NiZn technology to address electromagnetic interference issues in various electronic systems. It is distinct from surface mount variants and other series within the manufacturer's portfolio by its specific through-hole form factor and voltage ratings.
Replacement Considerations
Consult official Wurth datasheets for direct cross-references. Verify that any substitute maintains the 32 µH inductance, 5.5 A current rating, and 1500 VAC isolation. Ensure the replacement uses compatible NiZn material and through-hole mounting dimensions.
