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Product Detailed Parameters
- Description：CMC 3.3MH 1.8A 2LN TH
- Series：B82731
- Mfr：EPCOS - TDK Electronics
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：1.8A
- DC Resistance (DCR) (Max)：200mOhm (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：0.846" L x 0.531" W (21.50mm x 13.50mm)
- Height (Max)：0.831" (21.10mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：3.3 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82731T2182A020 is a current-compensated E-core double choke manufactured by EPCOS (TDK). It features a nominal inductance of 65 uH with a tolerance range of -30% to +50%. The component supports a maximum DC current of 1.8 A and has a maximum DC resistance of 200 mOhms. Designed for AC voltages up to 250 V, it utilizes ferrite core material and radial termination style. Physical dimensions include a case length of 21.1 mm, width of 21.5 mm, and height of 13.5 mm.
Feature Summary
- Current-compensated design utilizing an E-core structure for effective noise suppression
- Radial leaded termination style suitable for through-hole mounting applications
- Ferrite core construction providing stable magnetic properties under operating conditions
Applications
- Power line filtering in electronic equipment
- Noise suppression in AC power input circuits
- EMI reduction in industrial control systems
Procurement Notes
Verify the specific part number suffix against official EPCOS documentation to confirm exact electrical characteristics and packaging details. Ensure compatibility with required voltage ratings and current loads for the target application. Cross-reference approval agencies such as ENEC, UR, and VDE if regulatory compliance is mandatory for the end product deployment.
Selection Notes
Select this component based on its 65 uH inductance value and 1.8 A current handling capability. Consider the 200 mOhm DC resistance for efficiency requirements. Evaluate the physical footprint constraints against the specified case dimensions. Confirm that the radial termination style aligns with the printed circuit board layout and assembly process requirements.
Part Context
This component belongs to the B82731T series of current-compensated double chokes from EPCOS. These devices are engineered for power line applications requiring common mode noise attenuation. The series offers various inductance values and current ratings to suit different power supply designs. Ferrite core technology ensures reliable performance across the specified temperature range.
Replacement Considerations
Consult official EPCOS substitution guides for verified alternatives. Ensure any replacement matches the 65 uH inductance, 1.8 A current rating, and 250 V AC voltage specification. Verify physical dimension compatibility and terminal configuration before implementation.
