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Product Detailed Parameters
- Description：CMC 2.2MH 2A 2LN TH
- Series：WE-LF
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：2A
- DC Resistance (DCR) (Max)：60mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.906" L x 0.906" W (23.00mm x 23.00mm)
- Height (Max)：0.571" (14.50mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：2.2 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7446722002 is a through-hole common mode choke from the WE-LF series, designed for mains power line filtering. It features an inductance of 2.2 mH at 10 kHz and supports a maximum current of 2 A. The component has a DC resistance of 60 mOhm and is rated for AC voltages up to 250 V. Operating within a temperature range of -40°C to +125°C, it utilizes a vertical package with four pins and measures 23.50 mm x 16.00 mm x 25.50 mm.
Feature Summary
- Provides effective common mode noise suppression for two-line power circuits
- Constructed for robust performance in high-temperature environments up to 125°C
- Designed for direct through-hole mounting on printed circuit boards
Applications
- Mains power line EMI filtering
- Power supply input stages
- Industrial equipment power interfaces
Procurement Notes
Verify the specific suffix against official Wurth documentation to confirm pin configuration and tolerance. Ensure the procurement channel provides valid RoHS3 compliance certificates. Cross-reference the manufacturer part number with authorized distributor lists to avoid counterfeit components. Confirm that the through-hole footprint matches the target PCB design before ordering.
Selection Notes
Select this component when designing circuits requiring 2.2 mH common mode inductance for 2A applications. It is suitable for systems operating at 250V AC where low DC resistance is critical for efficiency. Consider the vertical package dimensions for adequate clearance in enclosed chassis designs. Verify thermal management requirements given the 125°C maximum operating temperature limit.
Part Context
This component belongs to the WE-LF series of common mode chokes specifically engineered for mains power lines. The series offers various inductance values and current ratings to suit different power filtering needs. Würth Elektronik designs these parts to meet strict electromagnetic compatibility standards for industrial and consumer electronics.
FAQ
What is the maximum AC voltage rating for this choke?
The 7446722002 is rated for a maximum AC voltage of 250 V.
Does this component support surface mount installation?
No, the 7446722002 is designed exclusively for through-hole mounting with a vertical package configuration.
