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Product Detailed Parameters
- Description：CMC 2.2MH 950MA 2LN TH
- Series：B82730
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：950mA
- DC Resistance (DCR) (Max)：410mOhm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：300V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：UR, VDE
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.650" L x 0.433" W (16.50mm x 11.00mm)
- Height (Max)：0.650" (16.50mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：2.2 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82730U3951A020 is a current-compensated U core double choke from the EPCOS B82730U series. It features an inductance of 2.2 mH with a rated DC current of 950 mA. The component has a maximum DC resistance of 410 mOhm and operates within a temperature range up to +40°C. Designed for vertical through-hole mounting, it measures 16.5 mm x 11 mm x 16.5 mm with an 8 mm lead pitch.
Feature Summary
- High resonance frequency for effective interference suppression
- Approximately 1.3% stray inductance ensuring symmetrical noise reduction
- Low whirring noise characteristics during operation
Applications
- Power line filtering
- Common mode noise suppression
- Electromagnetic compatibility (EMC) circuits
Procurement Notes
Verify the specific suffix A020 against official TDK documentation to confirm lead pitch and package dimensions. Ensure the application environment does not exceed the +40°C operating temperature limit specified for this series. Cross-reference the 2.2 mH inductance value with circuit requirements to prevent saturation or insufficient filtering performance.
Selection Notes
Select this component when a compact U-core design is required for power line chokes. The 950 mA rating suits moderate current applications. Consider the 8 mm lead pitch for PCB layout constraints. Verify that the 410 mOhm DCR aligns with system efficiency targets compared to higher current alternatives in the B82730U family.
Part Context
This part belongs to the B82730U series of current-compensated U core double chokes manufactured by EPCOS (TDK). These components are designed for AC power line applications, offering high inductance values in a small footprint. The series typically supports voltages up to 300 V AC, providing reliable common mode noise attenuation for electronic equipment.
Replacement Considerations
Consult the official B82730U datasheet for direct substitutes with different inductance or current ratings. Verify mechanical compatibility, specifically the 8 mm lead pitch and vertical mounting orientation, before replacing with other series members.
