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Product Detailed Parameters
- Description：CMC 3.9MH 1.3A 2LN TH
- Series：CA
- Mfr：Talema Group LLC
- Package：Tray
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：1.3A
- DC Resistance (DCR) (Max)：230mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.701" L x 0.504" W (17.80mm x 12.80mm)
- Height (Max)：0.787" (20.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：3.9 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The Talema Group LLC CAX-1.3-3.9 is a common mode choke designed for signal line applications. It features a vertical through-hole package with four pins. The component provides an inductance of 3.9 mH at a test frequency of 10 kHz, with a tolerance of ±30%. It supports a maximum current rating of 1.3 A and has a DC resistance of 230 mΩ. The device operates within a temperature range of -40°C to +125°C and is rated for 250 VAC.
Feature Summary
- Vertical through-hole mounting configuration
- Common mode filtering for signal lines
- RoHS3 compliant construction
Applications
- Signal line noise suppression
- Electromagnetic interference filtering
- Power supply input protection
Procurement Notes
Verify the specific datasheet version when sourcing, as manufacturer documentation may update specifications over time. Confirm that the vertical pin configuration matches your PCB layout requirements. Ensure the operating temperature range aligns with your system's thermal environment. Check RoHS3 compliance status if required by your regulatory standards.
Selection Notes
Select this component when a 3.9 mH inductance at 10 kHz is required for common mode noise reduction. The 1.3 A current rating suits moderate power applications. The vertical through-hole design facilitates manual assembly or wave soldering processes. Consider the 230 mΩ DC resistance impact on circuit efficiency during selection.
Part Context
This part belongs to the CAX series of common mode toroidal chokes from Talema Group LLC. The series offers various inductance and current combinations for different filtering needs. The CAX-1.3-3.9 specifically targets applications requiring higher inductance values with moderate current handling capabilities.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility carefully if considering alternative manufacturers' components with similar electrical specifications.
FAQ
What is the test frequency for the inductance specification?
The inductance of 3.9 mH is specified at a test frequency of 10 kHz.
Is this component suitable for high-temperature environments?
Yes, the component operates within a temperature range of -40°C to +125°C.
