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Product Detailed Parameters
- Description：CMC 137.5UH 2LN SMD
- Series：-
- Mfr：Traco Power
- Package：Strip
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：-
- DC Resistance (DCR) (Max)：55mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.256" L x 0.236" W (6.50mm x 6.00mm)
- Height (Max)：0.177" (4.50mm)
- Package / Case：Horizontal, 4 Gull Wing
- Inductance @ Frequency：137.5 µH @ 100 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The TCK-140 is a surface-mount common mode choke manufactured by Traco Power. It features an inductance of 137.5 µH ±25% per winding, measured at 100 kHz and 1 V. The component has a maximum DC resistance (DCR) of 55 mΩ and supports a maximum rated current of 640 mA. It is rated for a maximum voltage of 500 VDC. The physical dimensions are 6 mm in length and 6.5 mm in width. The device operates within a temperature range of -40°C to +105°C.
Feature Summary
- Provides common mode noise suppression with specified inductance characteristics
- Designed for surface mount technology integration
- Capable of handling high voltage ratings up to 500 VDC
Applications
- Industrial process controls
- Machine tools
- Sensitive loads in difficult industrial environments
Procurement Notes
Verify the specific datasheet version when ordering, as specifications may be updated. Confirm that the surface mount footprint matches the design layout. Ensure the operating temperature range of -40°C to +105°C meets the environmental requirements of the target application. Check for any recent compliance updates regarding RoHS or REACH declarations.
Selection Notes
Select this component when a compact common mode choke is required for SMD assembly. The 640 mA current rating and 55 mΩ DCR define the power loss and thermal performance. The 137.5 µH inductance value determines the filtering effectiveness at the target frequency. Consider the 500 VDC rating for insulation requirements in the circuit design.
Part Context
Traco Power specializes in DC/DC and AC/DC power conversion solutions. The TCK-140 is part of their passive component portfolio, supporting their broader ecosystem of power supplies used in industrial and medical applications. The company emphasizes quality standards and global distribution networks for its products.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with alternative components based on identical electrical parameters and mechanical footprint before substitution.
