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Product Detailed Parameters
- Description：CMC 27MH 650MA 2LN TH
- Series：B82731
- Mfr：EPCOS - TDK Electronics
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：650mA
- DC Resistance (DCR) (Max)：1.6Ohm (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：27 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82731T2651A020 is a current-compensated E-core double choke manufactured by EPCOS (TDK). It features a nominal inductance of 27 mH at 10 kHz and supports a rated current of 650 mA. The component operates with a rated voltage of 250 V AC and has a typical DC resistance of 1.6 Ohms. Designed for through-hole mounting, it utilizes ferrite core material to provide effective filtering in power line applications.
Feature Summary
- Current-compensated design for differential mode noise suppression
- E-core construction using ferrite magnetic material
- Through-hole radial termination style for PCB integration
Applications
- Power line chokes for AC mains filtering
- EMI suppression in electronic equipment input stages
- Common mode noise reduction in power supplies
Procurement Notes
Verify the specific suffix A020 against the manufacturer datasheet to confirm packaging details and tolerance specifications. Ensure the required inductance value of 27 mH aligns with the circuit design constraints. Confirm that the 650 mA rated current meets the operational requirements of the target application without exceeding thermal limits.
Selection Notes
Select this component when a fixed inductance of 27 mH is required for differential mode filtering in 250 V AC environments. The through-hole format is suitable for applications requiring robust mechanical stability. Compare the 1.6 Ohm DC resistance against other series options if lower insertion loss is critical for the specific power stage design.
Part Context
This part belongs to the B82731T series of current-compensated double chokes from EPCOS. These components are engineered for power line interference suppression. The series covers a range of inductances from 3.3 mH to 100 mH with varying current ratings up to 1.8 A, providing standardized solutions for EMI filter designs across industrial and consumer electronics.
Replacement Considerations
Check for direct substitutes within the B82731T series with identical 27 mH inductance and 650 mA rating. Verify pin compatibility and physical dimensions before replacing with components from other manufacturers to ensure board fit and electrical performance equivalence.
