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Product Detailed Parameters
- Description：CMC 56UH 40A 2LN CHASSIS MOUNT
- Series：B82505
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：40A
- DC Resistance (DCR) (Max)：6mOhm (Typ)
- Voltage Rating - DC：600V
- Voltage Rating - AC：500V
- Operating Temperature：-
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Chassis Mount
- Size / Dimension：4.370" L x 0.945" W (111.00mm x 24.00mm)
- Height (Max)：2.067" (52.50mm)
- Package / Case：-
- Inductance @ Frequency：56 µH @ 100 kHz
- Impedance @ Frequency：-
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Overview
The B82505WA7 is a fixed power line choke from the EPCOS B82505W series, designed for AC mains filtering. It features an I-core construction with a rectangular plastic case and resin potting. The component has a rated voltage of 500 V AC / 600 V DC and supports rated currents up to 40 A. Inductance values range from 0.056 mH to 5.6 mH within the series; specific variants include 1.2 mH at 8 A (B82505WA8) and 56 µH at 40 A (B82505WA7).
Feature Summary
- I-core choke design with rectangular plastic housing.
- Resin potting for mechanical stability and environmental protection.
- Suitable for high current applications up to 40 A.
Applications
- Power supply input filtering
- Battery charger circuits
- Portable device power stages
Procurement Notes
Verify the exact inductance value against the suffix code, as the B82505W series spans multiple ratings. Confirm the package type matches the PCB layout requirements. Ensure the operating temperature range aligns with the system's thermal profile. Check RoHS compliance status if required by the target market regulations.
Selection Notes
Select based on the specific inductance and current rating needed for the application. The B82505WA7 variant offers 56 µH at 40 A, suitable for high-current low-inductance needs. Higher inductance options like the WA8 variant are available for different filtering requirements. Consider the physical dimensions and mounting style during integration.
Part Context
This component belongs to the B82505W series of power line chokes manufactured by EPCOS (TDK Electronics). The series covers a wide range of inductances and currents, utilizing a robust I-core design. These chokes are engineered for reliable performance in demanding power electronics environments.
Replacement Considerations
Cross-reference with other B82505W suffixes for different electrical parameters. Verify compatibility with existing PCB footprints and thermal management solutions before substitution.
FAQ
What is the rated voltage of the B82505WA7?
The rated voltage is 500 V AC or 600 V DC.
What is the construction type of this choke?
It uses an I-core construction with a rectangular plastic case and resin potting.
