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Product Detailed Parameters
- Description：CMC 2.55MH 2A 2LN TH
- Series：7100
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：2A
- DC Resistance (DCR) (Max)：75mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.700" Dia x 0.550" W (17.78mm x 13.97mm)
- Height (Max)：0.700" (17.78mm)
- Package / Case：Vertical, No Base, 4 PC Pin
- Inductance @ Frequency：2.55 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns 7109-RC is a dual-winding common mode choke designed for through-hole mounting. It features a ferrite core and provides an inductance of 2.55 mH at 1 kHz with a tolerance of +15%. The component supports a maximum DC current of 2 A and has a maximum DC resistance of 75 mOhms. It operates within a temperature range of -55°C to 105°C and offers a dielectric strength of 1000 Vrms.
Feature Summary
- Dual winding configuration for effective noise suppression
- High current capacity suitable for demanding circuits
- Low radiation characteristics for signal integrity
- Mounted on VW-1 rated header for safety compliance
Applications
- Common mode EMI filtering in power supplies
- Signal line protection in industrial equipment
- Noise suppression in telecommunication systems
Procurement Notes
Verify the specific suffix RC against the manufacturer's official datasheet to confirm lead time and availability status, as these are subject to change. Ensure the procurement channel is authorized to guarantee component authenticity and traceability. Cross-reference the part number with the latest Bourns documentation to validate RoHS compliance and packaging details before finalizing orders.
Selection Notes
Select this component when a through-hole solution with high inductance and 2A current handling is required. The dual-winding design makes it suitable for differential lines where common mode noise reduction is critical. Verify that the physical dimensions fit the PCB layout and that the operating temperature range meets the environmental requirements of the target application.
Part Context
This component belongs to the Bourns 7100 series of common mode chokes. It is engineered for applications requiring robust electromagnetic interference suppression. The series utilizes ferrite cores to achieve high inductance values while maintaining low DC resistance. It is distinct from surface mount alternatives by its through-hole construction and header-mounted design.
Replacement Considerations
Check the 7110-RC model for alternative inductance values within the same series. Verify pin compatibility and mechanical footprint before substitution. Consult official Bourns documentation for cross-reference data to ensure electrical parameters match the original design requirements.
