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Product Detailed Parameters
- Description：CMC 320UH 3.25A 2LN SMD
- Series：WE-UCF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：2
- Current Rating (Max)：3.25A
- DC Resistance (DCR) (Max)：29mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.571" L x 0.492" W (14.50mm x 12.50mm)
- Height (Max)：0.307" (7.80mm)
- Package / Case：Horizontal, 4 Flat Lead
- Inductance @ Frequency：320 µH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744290321 is a WE-UCF series surface-mount common mode choke designed for signal, data lines, and power supplies. It features an inductance of 320 µH at 10 kHz with a maximum DC current rating of 3.25 A. The component has a maximum DC resistance of 0.029 Ω and operates within a temperature range of -40°C to +125°C.
Feature Summary
- Provides effective common mode noise suppression for sensitive signal and data transmission lines.
- Suitable for integration into compact power supply circuits requiring high current handling.
- Constructed as a sectional SMD component for efficient PCB mounting.
Applications
- Signal line filtering
- Data line protection
- Power supply EMI suppression
Procurement Notes
Verify the specific manufacturer part number against official Wurth Elektronik documentation to ensure correct specifications. Confirm that the required inductance and current ratings align with your circuit design requirements before procurement.
Selection Notes
Select this component when designing circuits that require robust common mode noise attenuation for both low-voltage signals and moderate-current power rails. Ensure the physical footprint and thermal characteristics fit the target application environment.
Part Context
This component belongs to the WE-UCF series from Würth Elektronik, which specializes in surface-mount common mode chokes. These components are engineered for universal application across various electronic systems, balancing performance with compact form factors.
Replacement Considerations
Consult official Wurth Elektronik substitution guides or datasheets for verified alternative part numbers. Do not assume cross-compatibility with other manufacturers' components without verifying electrical parameters and physical dimensions.
FAQ
What is the inductance value of the 744290321?
The inductance is 320 µH, measured at a test frequency of 10 kHz.
What is the maximum DC current rating?
The maximum DC current rating is 3.25 A.
