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Product Detailed Parameters
- Description：CMC 1MH 2LN TH
- Series：B82724
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：-
- DC Resistance (DCR) (Max)：12mOhm (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：1 mH @ 100 kHz
- Impedance @ Frequency：-
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Overview
The B82724J8742N040 is a current-compensated ring core double choke manufactured by EPCOS, now part of TDK Electronics. It features a frame core construction designed for power line applications with a rated voltage of 250VAC (50/60 Hz) and 800V DC. The component supports a test voltage of 2000V AC for 2 seconds between lines. It operates at a rated temperature of +70°C and utilizes standard termination methods for PCB mounting. The physical length is specified as 33.2 mm.
Feature Summary
- Current-compensated ring core design for effective noise suppression
- Frame core double choke construction for high inductance stability
- Rated for 250VAC and 800VDC power line environments
Applications
- Power line filtering in industrial equipment
- EMI suppression in automotive electronics
- Noise reduction in consumer appliances
Procurement Notes
Verify the specific rated current value against the official manufacturer datasheet, as it is not explicitly stated in the provided summary data. Confirm that the +70°C rated temperature aligns with your thermal management requirements. Ensure the 33.2 mm length fits within the designated PCB footprint constraints before finalizing procurement.
Selection Notes
Select this component when a current-compensated double choke is required for differential mode noise attenuation on AC or DC power lines. The 250VAC rating makes it suitable for mains-connected devices. Consider the frame core construction if higher inductance density is needed compared to standard ring cores. Verify compatibility with standard PCB mounting techniques.
Part Context
This component belongs to the B82724J series of power line chokes from EPCOS/TDK. These components are engineered for electromagnetic interference (EMI) suppression in electronic circuits. The series typically offers wide inductance ranges and high current capabilities, serving as critical passive elements for ensuring compliance with electromagnetic compatibility standards in various electronic systems.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult the official TDK/EPCOS replacement guide or distributor cross-reference tools for verified alternatives.
