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Product Detailed Parameters
- Description：CMC 4.4MH 600MA 2LN SMD
- Series：B82720
- Mfr：EPCOS - TDK Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：600mA
- DC Resistance (DCR) (Max)：400mOhm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.571" L x 0.524" W (14.50mm x 13.30mm)
- Height (Max)：0.421" (10.70mm)
- Package / Case：Horizontal, 8 Gull Wing
- Inductance @ Frequency：4.4 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82720S2601N040 is a current-compensated SMD ring core double choke manufactured by EPCOS (TDK Electronics). It functions as a two-line common mode choke designed for power line filtering. The component features an inductance of 4.4 mH at 10 kHz and supports a maximum current of 600 mA. Its typical DC resistance is 400 mOhm, with an AC voltage rating of 250 V. The device utilizes a horizontal surface mount package measuring 14.50 mm x 13.30 mm.
Feature Summary
- Current-compensated design for effective common mode noise suppression
- Surface mount construction for automated PCB assembly
- Ring core magnetic structure for high efficiency
Applications
- Power line filtering in electronic equipment
- EMI suppression in consumer electronics
- Noise reduction in industrial control systems
Procurement Notes
Verify the complete part number including the suffix to ensure correct packaging and tolerance specifications. Confirm that the 600 mA current rating and 4.4 mH inductance align with the specific circuit requirements. Check for RoHS compliance status if required by regulatory standards. Ensure the horizontal SMD footprint matches the target PCB layout dimensions.
Selection Notes
Select this component when a compact surface mount solution is required for dual-line power filtering. The 4.4 mH inductance provides significant attenuation for common mode interference. The 600 mA current handling capacity suits low-to-medium power applications. Verify thermal performance under continuous load conditions to ensure reliability within the operating temperature range.
Part Context
This component belongs to the B82720 series of current-compensated chokes from EPCOS. These devices are engineered for electromagnetic compatibility in power supply circuits. The series offers various inductance values and current ratings to accommodate different filtering needs across automotive, industrial, and consumer sectors.
Replacement Considerations
Consult official TDK/EPCOS substitution guides for verified alternatives. Ensure any replacement maintains identical inductance, current rating, and physical footprint. Cross-reference datasheets to confirm compatible mounting and electrical characteristics.
