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Product Detailed Parameters
- Description：CMC 25.5MH 4A 2LN TH
- Series：7100
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：130mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.230" Dia x 0.900" W (31.24mm x 22.86mm)
- Height (Max)：1.230" (31.24mm)
- Package / Case：Vertical, No Base, 4 PC Pin
- Inductance @ Frequency：25.5 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns 7122-RC is a common mode choke from the J.W. Miller 7100 series, designed for EMI filtering in audio and power frequency applications. It features a 25.5 mH inductance measured at 1 kHz and supports a current rating of 4 A. The component utilizes a ferrite core and is available in a two-line through-hole package with a DC resistance of 130 mOhm.
Feature Summary
- Provides effective common mode noise suppression for electromagnetic interference (EMI) filtering
- Utilizes a ferrite core material to enhance magnetic performance
- Designed for high current handling capabilities in dual-line configurations
Applications
- Electromagnetic interference filtering in audio equipment
- Power frequency signal conditioning circuits
- Dual-line common mode noise suppression systems
Procurement Notes
Verify availability status as the base model 7122 is listed as obsolete or limited supply. Confirm RoHS compliance details for the specific -RC suffix variant against current manufacturer documentation. Ensure lead times align with project schedules due to potential discontinuation risks associated with the parent series.
Selection Notes
Select this component for applications requiring 25.5 mH inductance at 1 kHz with 4 A current capacity. Verify that the through-hole mounting style fits the PCB layout constraints. Compare the 130 mOhm DC resistance against circuit loss requirements. Ensure the ferrite core characteristics match the target frequency range for optimal EMI attenuation.
Part Context
This part belongs to the Bourns J.W. Miller 7100 series of common mode chokes. The series includes variants such as the 7123-RC with different inductance values. These components are categorized under inductors, chokes, and coils, specifically targeting common mode noise reduction in electronic circuits.
Replacement Considerations
Publicly confirmed substitute part numbers are not provided in the source data. Evaluate other models within the 7100 series, such as the 7123-RC, if inductance differences are acceptable. Consult official Bourns documentation for cross-reference recommendations.
