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Product Detailed Parameters
- Description：CMC 3MH 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：0.600" Dia x 0.450" W (15.24mm x 11.43mm)
- Height (Max)：-
- Package / Case：Vertical, No Base, 2 PC Pin
- Inductance @ Frequency：3 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns Inc. 7109 is a through-hole common mode choke designed for data line filtering applications. It features a vertical package with two pins and utilizes ferrite core material. The component provides an inductance of 3 mH at 1 kHz and supports a maximum current rating of 2 A. Its DC resistance is specified at a maximum of 75 mOhm. The device operates within a temperature range of -55°C to 105°C.
Feature Summary
- Vertical through-hole construction for standard PCB mounting
- Ferrite core design for effective noise suppression
- Dual-line configuration for balanced signal protection
Applications
- Data line filtering
- Common mode noise reduction in electronic circuits
Procurement Notes
Verify the obsolete status of part number 7109 before procurement planning. Confirm availability of direct substitutes such as 7109-RC if original stock is unavailable. Ensure compatibility with existing board layouts when transitioning to replacement components. Check specific datasheet revisions for any parameter variations between legacy and substitute parts.
Selection Notes
Select this component based on its 3 mH inductance requirement at 1 kHz and 2 A current handling capability. Consider the vertical form factor for space-constrained through-hole designs. Evaluate the operating temperature range against environmental conditions. Verify that the ferrite core characteristics meet the specific frequency attenuation requirements of the application.
Part Context
This component belongs to the Bourns Inc. common mode choke product family, specifically engineered for data line protection. It serves as a passive filter element to suppress electromagnetic interference. The series typically includes variants with different inductance values and current ratings to suit various signal integrity needs.
Replacement Considerations
The 7109-RC is listed as a direct substitute for the obsolete 7109. Note that the RC variant specifies 2.55 mH inductance compared to the original 3 mH. Verify if this difference impacts circuit performance before substitution.
