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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：1.232" L x 0.728" W (31.30mm x 18.50mm)
- Height (Max)：1.307" (33.20mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：20 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The B82724J2222N021 is a current-compensated ring core double choke manufactured by EPCOS (TDK Electronics). It features a ferrite core and radial leaded construction for through-hole mounting. The component has an inductance of 20 mH, a maximum DC current rating of 2.2 A, and a maximum DC resistance of 31 mOhm. It operates within a temperature range of -40 °C to +125 °C and complies with RoHS standards.
Feature Summary
- Provides common mode filtering for power lines using a current-compensated ring core design.
- Features a rectangular ferrite core structure with radial leads for PCB integration.
- Designed for high thermal stability with an operating temperature range up to 125 °C.
Applications
- Power line chokes in electronic equipment
- Common mode filter networks
- Safety compliance circuits
Procurement Notes
Verify the specific suffix N021 against official TDK/EPCOS documentation to confirm pinout and tolerance specifications. Ensure the selected variant matches the required 20 mH inductance and 2.2 A current rating for your circuit design. Cross-reference datasheets for exact dimensional constraints and thermal derating curves before finalizing procurement.
Selection Notes
Select this component when a 20 mH common mode choke with a 2.2 A current rating is required. Consider its 31 mOhm DC resistance for efficiency calculations. Verify that the radial lead spacing and housing dimensions fit the target PCB layout. Ensure the application environment stays within the specified -40 °C to +125 °C operating range.
Part Context
This part belongs to the B82724 series of power line chokes from EPCOS (TDK Electronics). These components are designed as current-compensated ring core double chokes for AC mains applications. The series typically supports voltages up to 250 V AC and offers various inductance values ranging from microhenries to millihenries.
Replacement Considerations
Check for direct substitutes within the B82724J series with identical 20 mH inductance and 2.2 A ratings. Verify mechanical compatibility including lead spacing and housing dimensions. Confirm electrical parameters such as DC resistance and saturation current match or exceed original requirements.
FAQ
What is the inductance value of the B82724J2222N021?
The nominal inductance is 20 mH.
What is the maximum DC current rating?
The maximum DC current rating is 2.2 A.
What type of core material is used?
It uses a ferrite core material.
