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Product Detailed Parameters
- Description：COMMON MODE CHOKE 2LN
- Series：-
- Mfr：Traco Power
- Package：Tray
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：-
- DC Resistance (DCR) (Max)：-
- Voltage Rating - DC：24V
- Voltage Rating - AC：-
- Operating Temperature：-
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：-
- Size / Dimension：-
- Height (Max)：-
- Package / Case：-
- Inductance @ Frequency：-
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
Download product information
Overview
The TCK-128 is a through-hole common mode choke manufactured by Traco Power, designed for use in DC/DC converter circuits. It features an inductance of 277 µH with a tolerance of ±25% per winding, measured at 10 kHz and 50 mV. The component has a maximum impedance (DCR) of 59 mΩ and supports a maximum rated current of 0.98 A. It is rated for a maximum voltage of 500 V DC and operates within a temperature range of -40°C to +105°C. The physical dimensions are 7.5 x 8.5 x 10.5 mm.
Feature Summary
- Provides common mode noise suppression for DC/DC converter applications
- Through-hole mounting technology for robust mechanical connection
- High operating temperature capability up to 105°C
Applications
- EMC filtering in DC/DC converters
- Industrial control systems requiring noise reduction
- Power supply input/output stages
Procurement Notes
Verify the specific inductance tolerance and current ratings against the latest official datasheet before integration. Confirm that the through-hole package dimensions match the target PCB layout. Ensure the operating environment temperature remains within the specified -40°C to +105°C range to maintain performance reliability.
Selection Notes
Select this component when common mode noise suppression is required for low-current DC lines. The 277 µH inductance value is suitable for standard switching frequencies. Consider the 59 mΩ DCR for efficiency calculations in power-sensitive designs. The through-hole format is appropriate for prototyping or high-reliability industrial assemblies where surface mount options are unsuitable.
Part Context
This component belongs to Traco Power's passive filter series, complementing their active DC/DC converter modules. While Traco Power is primarily known for power supplies, the TCK-128 serves as a supporting EMC component to ensure compliance with electromagnetic interference standards in end-user equipment.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing circuit parameters if considering alternative manufacturers.
