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Product Detailed Parameters
- Description：CMC 1.7MH 1A 2LN TH
- Series：7100
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：70mOhm
- 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：1.7 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns Inc. 7103-RC is a through-hole common mode choke designed for electromagnetic interference suppression in two-line circuits. It features an inductance of 1.7 mH measured at 1 kHz with a tolerance of 15%. The component supports a maximum DC current of 1 A and exhibits a maximum DC resistance of 70 mOhms. It operates within a temperature range of -55°C to +125°C and measures 17.78 mm in diameter by 13.97 mm in width.
Feature Summary
- Provides common mode noise attenuation for differential signal lines
- Utilizes a robust through-hole construction for secure mechanical mounting
- Engineered for high saturation current handling capabilities
Applications
- Power supply input filtering
- Data line noise suppression
- Industrial control circuit protection
Procurement Notes
Verify the specific suffix designation against official Bourns documentation to confirm exact electrical tolerances and material compliance status. Ensure the procurement channel provides valid traceability records. Confirm that the delivered components match the specified package dimensions and lead configurations required for the target PCB layout.
Selection Notes
Select this component when a 1.7 mH inductance value is required for common mode noise reduction in low-current applications. Evaluate the 1 A current rating against peak load requirements to prevent saturation. Consider the physical footprint constraints relative to the 17.78 mm diameter specification during the mechanical design phase.
Part Context
This component belongs to the Bourns 7100 series of common mode chokes, which are engineered for general-purpose EMI suppression. The series offers various inductance values tailored for different frequency ranges and current levels. These components are widely utilized in consumer electronics and industrial equipment to meet regulatory emission standards.
Replacement Considerations
Cross-reference with other Bourns 7100 series variants such as 7101-RC or 7102-RC if different inductance values are acceptable. Verify pin compatibility and physical dimensions before substituting with non-Bourns equivalents to ensure proper fit and function.
