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Product Detailed Parameters
- Description：CMC 460UH 400MA 2LN TH
- Series：B82721
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：1.56Ohm
- 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：0.717" L x 0.520" W (18.20mm x 13.20mm)
- Height (Max)：0.803" (20.40mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：460 µH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82721K2401U030 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It functions as a power line common mode filter with an inductance of 460 µH per line and a maximum DC current rating of 400 mA. The component utilizes a ferrite core material and features radial termination for through-hole mounting. Electrical specifications include a tolerance of ±30%, a maximum DC resistance of 1.7 Ohms, and a withstand voltage of 2 kVAC. The device operates within a temperature range of -40°C to +125°C.
Feature Summary
- Provides common mode noise suppression for power lines using a current-compensated ring core design.
- Features vertical radial termination suitable for through-hole PCB mounting.
- Constructed with ferrite core material to ensure stable magnetic performance.
Applications
- Power supply input filtering
- EMI suppression in electronic equipment
- Common mode interference reduction in AC/DC converters
Procurement Notes
Verify the specific ordering suffix against official EPCOS documentation to confirm exact electrical tolerances and mechanical dimensions. Ensure the selected variant matches the required inductance value and current rating for the target application circuit. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and availability status prior to purchase.
Selection Notes
Select this component based on the required 460 µH inductance and 400 mA current handling capability. Consider the physical dimensions and vertical mounting style for PCB layout constraints. Evaluate the thermal operating range and insulation voltage requirements to ensure compatibility with the system's environmental and safety standards.
Part Context
This component belongs to the B82721 series of current-compensated ring core chokes designed for power line applications. The series offers various inductance values and current ratings to suit different filtering needs. EPCOS manufactures these components to meet strict quality standards for industrial and consumer electronics markets.
Replacement Considerations
Consult official EPCOS substitution lists for compatible alternatives. Verify that any replacement part matches the original inductance, current rating, and physical footprint to maintain circuit performance and board integrity.
FAQ
What is the maximum DC current rating for this choke?
The maximum DC current rating is 400 mA.
What is the inductance value per line?
The inductance is 460 µH per line.
