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Product Detailed Parameters
- Description：CMC 3MH 1A 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)：1A
- DC Resistance (DCR) (Max)：220mOhm (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：3 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82720S2102N040 is a surface-mount common mode choke manufactured by TDK Electronics. It features a ferrite core and provides an inductance of 3 mH at 10 kHz with a tolerance of -30% to +50%. The component supports a maximum DC current of 1 A and has a maximum DC resistance of 220 milliohms. Rated for AC voltages up to 250 V, it operates within a temperature range of -40 °C to +125 °C. The physical dimensions are 14.50 mm in length, 13.30 mm in width, and a maximum height of 10.70 mm.
Feature Summary
- Surface-mount construction utilizing a horizontal 8-lead鸥翼 package design
- Current-compensated ring core architecture for effective noise suppression
- High thermal stability supporting operation up to 125 °C
Applications
- Power line filtering in electronic equipment
- Noise suppression in motor control systems
- Common mode interference reduction in signal lines
Procurement Notes
Verify the specific suffix N040 against official TDK documentation to confirm lead-free compliance and RoHS status. Ensure the ordering part number matches the required inductance value of 3 mH and current rating of 1 A. Confirm package orientation and pin configuration align with the PCB footprint before procurement.
Selection Notes
Select this component when surface-mount technology is required for power line applications. The 3 mH inductance and 1 A current rating suit circuits needing moderate noise attenuation. Verify that the 10.70 mm height fits within the assembly constraints. Consider the -40 °C to +125 °C operating range for environmental suitability.
Part Context
This component belongs to the B82720S series of current-compensated ring core double chokes from TDK Electronics. The series offers various inductance values tailored for power line filtering. The S designation indicates surface-mount packaging, distinguishing it from through-hole variants like the B82720A or B82720K series.
Replacement Considerations
Check for direct substitutes within the B82720S series with compatible inductance and current ratings. Verify mechanical compatibility with existing footprints. Cross-reference electrical parameters such as DCR and saturation current to ensure equivalent performance in the target circuit.
