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Product Detailed Parameters
- Description：CMC 6.8MH 4.3A 2LN TH
- Series：B82724
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：4.3A
- DC Resistance (DCR) (Max)：40mOhm (Typ)
- Voltage Rating - DC：800V
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.232" L x 0.728" W (31.30mm x 18.50mm)
- Height (Max)：1.307" (33.20mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：6.8 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82724J8432N040 is a current-compensated ring core double choke designed for power line applications. It features an inductance of 6.8mH at 10kHz and supports a maximum DC current of 4.3A. The component has a maximum DC resistance of 40 mOhms and operates within a temperature range of -40°C to +125°C. Rated voltages are 250V AC and 800V DC. Dimensions are 31.30mm x 18.50mm x 33.20mm with a vertical, 4-pin through-hole package.
Feature Summary
- Current-compensated ring core construction for effective common mode interference suppression
- Fully encapsulated design to enhance thermal stability and reduce local contamination
- Special winding technology ensures high resonance frequency
- Maintains rated inductance and current values at high operating temperatures
Applications
- DC-link applications
- Switching mode power supplies
- High voltage applications
- Frequency converters
Procurement Notes
Verify the specific suffix N040 against official TDK/EPCOS documentation to confirm pin configuration and material specifications. Ensure the selected variant matches the required 6.8mH inductance and 4.3A current rating for your circuit design. Cross-reference the datasheet for exact dimensional tolerances and thermal derating curves before finalizing procurement.
Selection Notes
Select this component when high current compensation and robust thermal performance are required in compact power line filters. The vertical mounting style suits space-constrained PCB layouts. Consider the 40 mOhm DCR for efficiency calculations. Verify that the 250V AC rating aligns with your mains input requirements.
Part Context
This part belongs to the B82724J8 series of power line chokes from EPCOS (TDK). The series offers various inductance and current ratings using ferrite cores. These chokes are engineered for industrial electronics, providing reliable common mode noise reduction in demanding electrical environments.
Replacement Considerations
Check for direct substitutes within the B82724J8 series with matching 6.8mH inductance and 4.3A current ratings. Ensure any replacement maintains the same vertical 4-pin through-hole footprint and encapsulation type for mechanical compatibility.
FAQ
What is the resonance frequency characteristic of this choke?
The B82724J8 series utilizes special winding technology to achieve a high resonance frequency, enhancing its effectiveness in suppressing high-frequency noise.
How does the encapsulation affect performance?
The fully encapsulated design improves thermal stability and reduces the risk of local contamination, ensuring reliable operation in harsh industrial environments.
