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Product Detailed Parameters
- Description：CMC 25MH 250MA 2LN TH
- Series：WE-TFC
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：250mA
- DC Resistance (DCR) (Max)：3.6Ohm
- 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 0.433" W (17.00mm x 11.00mm)
- Height (Max)：0.669" (17.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：25 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744862250 is a through-hole common mode choke from the WE-TFC series, designed for power line filtering. It features an inductance of 25 mH at 10 kHz and supports a maximum DC current of 250 mA. The component has a maximum DC resistance of 3.6 Ohms and operates within a temperature range of -40°C to +125°C. Rated for 400 V AC, it utilizes a vertical four-pin package with dimensions of 17.00 mm x 11.00 mm x 17.00 mm.
Feature Summary
- Provides effective common mode noise suppression for power lines
- Constructed with ferrite core material for stable performance
- Designed for reliable operation across wide industrial temperature ranges
Applications
- Power supply input filtering
- EMI suppression in electronic equipment
- Signal integrity protection in data lines
Procurement Notes
Verify the specific voltage rating and current capacity against your circuit requirements before integration. Confirm that the through-hole mounting style and pin spacing match your PCB layout. Ensure the operating temperature range meets your environmental conditions. Cross-reference the datasheet for precise mechanical dimensions to avoid assembly conflicts.
Selection Notes
Select this component when a 25 mH inductance value is required for common mode noise reduction. Consider the 250 mA current rating to ensure it handles the expected load without saturation. The 3.6 Ohm DC resistance impacts power loss; verify this aligns with efficiency targets. The vertical package orientation must fit within the available board space constraints.
Part Context
This part belongs to the WE-TFC series of common mode chokes by Würth Elektronik. These components are engineered for robust electromagnetic interference filtering in various electronic applications. The series offers standardized specifications to simplify design integration and ensure consistent performance across different product lines.
Replacement Considerations
Check for direct substitutes within the WE-TFC series with matching inductance and current ratings. Verify compatibility with existing PCB footprints if considering alternative packages. Ensure any replacement meets the same thermal and electrical safety standards.
