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Product Detailed Parameters
- Description：CMC 3.9MH 8A 2LN TH
- Series：B82725
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：8A
- DC Resistance (DCR) (Max)：31mOhm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：ENEC, UR, VDE
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.732" L x 1.669" W (44.00mm x 42.40mm)
- Height (Max)：0.984" (25.00mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：3.9 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82725A2802N020 is a current-compensated ring core double choke designed for power line applications. It features an inductance of 3.9 mH and supports a maximum current of 8 A. The component has a typical DC resistance of 31 mOhm and operates within a temperature range of -40°C to 125°C. It utilizes through-hole mounting with horizontal leads and measures 44.00 mm x 42.40 mm x 25.00 mm.
Feature Summary
- Current-compensated ring core design for effective common mode noise suppression
- Double choke configuration supporting two-line power circuits
- Through-hole mounting for robust mechanical integration
Applications
- Power line filtering in industrial equipment
- Noise suppression in AC power input stages
- EMI reduction in consumer electronics power supplies
Procurement Notes
Verify the complete part number including suffixes against official EPCOS/TDK documentation to ensure correct inductance and current ratings. Confirm package orientation and lead form match your PCB layout requirements. Check RoHS compliance status if required by your manufacturing standards. Ensure operating temperature range aligns with your system's thermal environment.
Selection Notes
Select this component when high current handling up to 8 A is required alongside significant inductance for power line filtering. The horizontal through-hole package suits boards with specific spatial constraints. Consider the 31 mOhm DCR impact on voltage drop and power dissipation in your circuit design. Verify compatibility with 250 V AC systems as specified in the series datasheet.
Part Context
This component belongs to the B82725A series of power line chokes manufactured by EPCOS, now part of TDK Electronics. The series offers various inductance and current combinations for different power line filtering needs. These chokes are engineered for reliability in demanding industrial and commercial environments.
Replacement Considerations
Consult official TDK/EPCOS substitution guides for verified alternatives within the B82725A series or compatible product lines. Ensure any substitute matches the 3.9 mH inductance, 8 A current rating, and physical dimensions. Verify that replacement components maintain the same current-compensated ring core technology for equivalent performance.
