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Product Detailed Parameters
- Description：CMC 1.8MH 1A 2LN TH
- Series：WE-TFCH
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：310mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：400V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.669" L x 0.600" W (17.00mm x 15.23mm)
- Height (Max)：0.481" (12.23mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：1.8 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744861018 is a horizontal through-hole common mode power line choke from the WE-TFCH Type UT series. It features an inductance of 1.8 mH measured at 10 kHz with a tolerance range of -30% to +50%. The component supports a maximum DC current of 1 A and has a maximum DC resistance (DCR) of 310 mOhms. Designed for robust operation, it functions within a temperature range of -40°C to +125°C. The physical dimensions are 17.00 mm in length, 15.23 mm in width, and 12.23 mm in height.
Feature Summary
- Horizontal PCB mount configuration for space-efficient assembly
- Ferrite core construction for effective noise suppression
- Rated for AC 400V applications
Applications
- Power line filtering in electronic equipment
- Common mode noise reduction in industrial systems
- EMI suppression in consumer electronics
Procurement Notes
Verify the specific part number against official Wurth Elektronik documentation to ensure accuracy. Confirm that the required inductance tolerance and current ratings align with your circuit design specifications before procurement. Check for any recent Product Change Notifications (PCNs) related to the WE-TFCH series that may affect mechanical or electrical characteristics.
Selection Notes
Select this component when a horizontal form factor is required for through-hole mounting. Ensure the design accommodates the specified 1 A current rating and 310 mOhm DCR. Verify that the operating environment stays within the -40°C to +125°C temperature range. Consider the physical footprint of 17.00 x 15.23 mm for PCB layout constraints.
Part Context
This component belongs to the WE-TFCH series, which specializes in common mode chokes for power lines. The Type UT designation indicates a specific variant within this family designed for general-purpose power line filtering applications. It utilizes ferrite material to provide high impedance to common mode signals while allowing differential mode currents to pass with minimal loss.
FAQ
What is the inductance tolerance for the 744861018?
The inductance tolerance is -30% to +50%.
Is this component shielded?
No, the WE-TFCH Type UT series is unshielded.
