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Product Detailed Parameters
- Description：CMC 20MH 2.2A 2LN TH
- Series：B82724
- Mfr：EPCOS - TDK Electronics
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：2.2A
- DC Resistance (DCR) (Max)：250mOhm (Typ)
- 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：1.303" L x 1.280" W (33.10mm x 32.50mm)
- Height (Max)：0.776" (19.70mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：20 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82724A2222N021 is a current-compensated ring core double choke manufactured by EPCOS (TDK Electronics). It features two elements with a rated inductance of 20 mH and a rated current of 2.2 A. The component has a DC resistance of 31 mOhm and operates within a temperature range of -40°C to +125°C. Designed for horizontal through-hole mounting, it measures 33.10 mm in length, 32.50 mm in width, and 19.70 mm in height. It is rated for 250 V AC and complies with RoHS standards.
Feature Summary
- Current-compensated design utilizing a ring core structure to minimize electromagnetic interference.
- Dual-element configuration providing balanced filtering for power line applications.
- Robust construction suitable for high-current environments with low DC resistance.
Applications
- Power line filtering in industrial electronics
- Electromagnetic compatibility suppression in AC power circuits
- Noise reduction in general-purpose power supplies
Procurement Notes
Verify the specific suffix N021 against official TDK/EPCOS documentation to confirm lead frame plating and packaging details. Ensure the procurement channel provides original manufacturer traceability. Cross-reference the part number with the latest datasheet revision to confirm compliance with current environmental directives and mechanical dimensions before finalizing orders.
Selection Notes
Select this component when a 20 mH inductance at 2.2 A is required for power line chokes. Consider the horizontal mounting profile and specific footprint dimensions (33.10 x 32.50 mm) during PCB layout. Evaluate the thermal performance requirements against the specified operating temperature range of -40°C to +125°C for the intended application environment.
Part Context
This part belongs to the B82724A/J series of current-compensated ring core double chokes from EPCOS (TDK Electronics). The series covers a wide range of inductances from 1 mH to 82 mH and currents from 0.5 A to 6 A. These components are engineered for robust performance in AC power line applications, offering reliable noise suppression and electromagnetic compatibility in demanding electronic systems.
Replacement Considerations
Consult official TDK/EPCOS substitution guides for verified alternatives within the B82724 series. Ensure any replacement matches the 20 mH inductance, 2.2 A current rating, and physical mounting dimensions. Verify that alternative parts maintain the same current-compensated ring core architecture and voltage ratings.
