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Product Detailed Parameters
- Description：CMC 1.8MH 18A 3LN TH
- Series：B82747
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：3
- Current Rating (Max)：18A
- DC Resistance (DCR) (Max)：4.7mOhm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：440/250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：2.677" Dia (68.00mm)
- Height (Max)：1.299" (33.00mm)
- Package / Case：Radial - 6 Leads
- Inductance @ Frequency：1.8 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The EPCOS B82747S4183N021 is a current-compensated ring core choke from the B82747S series. It features an inductance of 1.8 mH with a tolerance of ±30%. The component supports a maximum DC current of 18A and has a maximum DC resistance of 4.7mΩ. Physical dimensions are 68mm diameter by 33mm height, utilizing a ferrite core material. It operates within a temperature range up to +70°C and has a maximum self-resonant frequency of 10kHz.
Feature Summary
- Current-compensated design for efficient magnetic field cancellation
- Radial leaded construction for through-hole PCB mounting
- Ferrite core material for stable inductive performance
Applications
- Power supply input filtering
- EMI suppression in AC/DC converters
- Common mode noise reduction in industrial equipment
Procurement Notes
Verify the complete part number including suffix N021 to ensure correct pin configuration and insulation class. Confirm that the 18A rated current aligns with the specific thermal management requirements of the target application. Check for RoHS compliance status if required by regional regulations. Ensure the radial lead spacing matches the printed circuit board layout specifications before ordering.
Selection Notes
Select this component when high current handling capability is required alongside significant inductance values. The 1.8 mH value provides effective filtering for low-frequency noise. Consider the physical size constraints due to the 68mm diameter. Evaluate thermal dissipation needs given the 4.7mΩ DC resistance at full load conditions.
Part Context
This component belongs to the B82747S series of current-compensated ring core chokes manufactured by EPCOS, now part of TDK Electronics. These components are designed for robust performance in demanding power electronics environments. The series offers various inductance values tailored for different filtering requirements while maintaining compact form factors relative to their current ratings.
Replacement Considerations
Consult official TDK/EPCOS documentation for direct cross-references. Verify equivalent inductance, current rating, and physical dimensions before substituting.
