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Product Detailed Parameters
- Description：CMC 1.219MH 4A 2LN TH
- Series：-
- Mfr：Traco Power
- Package：Tube
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：-
- Voltage Rating - DC：500V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：-
- Height (Max)：0.492" (12.50mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：1.219 mH @ 100 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The TCK-123 is a common mode choke designed for use with Traco isolated DC-DC converters. It features an inductance of 1219 µH ±35% at 100 kHz and 100 mV, with a maximum DC resistance of 26.2 mΩ. The component supports a maximum rated current of 4 A and a maximum rated voltage of 500 VDC. It utilizes a through-hole mounting style and measures 16.6 mm in length, 16.4 mm in width, and 12.5 mm in height.
Feature Summary
- Provides electromagnetic interference filtering for DC-DC converter applications
- Supports high isolation voltage ratings up to 500 VDC
- Designed for through-hole PCB integration
Applications
- EMC filtering for Traco isolated DC-DC converters
- Industrial equipment power supply stages
- Commercial ITE power systems
Procurement Notes
Verify the specific datasheet revision date upon procurement, as specifications may be updated. Confirm that the application environment does not exceed the 4 A maximum rated current or 500 VDC voltage limits. Ensure through-hole footprint compatibility with the target PCB layout before finalizing orders.
Selection Notes
Select this component when EMC compliance is required for Traco power modules. The low DC resistance minimizes power loss in the signal path. Verify that the operating frequency aligns with the 100 kHz test conditions specified for inductance values.
Part Context
This component belongs to the Traco Power accessory range, specifically engineered to enhance the performance of their isolated DC-DC converter series. It serves as a passive filter element to suppress common mode noise generated by switching power supplies.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
FAQ
What is the inductance tolerance?
The inductance tolerance is ±35% at 100 kHz and 100 mV.
Is this component suitable for AC applications?
The datasheet specifies a maximum rated voltage of 500 VDC, indicating it is designed for DC circuit filtering.
