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Product Detailed Parameters
- Description：CMC 850UH 5A 2LN TH
- Series：7100
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：5A
- DC Resistance (DCR) (Max)：35mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.900" Dia x 0.650" W (22.86mm x 16.51mm)
- Height (Max)：0.900" (22.86mm)
- Package / Case：Vertical, No Base, 4 PC Pin
- Inductance @ Frequency：850 µH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns 7117-RC is a single-channel common mode choke filter designed for printed circuit board mounting. It features a toroidal core construction with radial through-hole termination. The component provides an inductance of 850 µH at 1 kHz with a tolerance of 15%. It supports a maximum DC current of 5 A and exhibits a maximum DC resistance of 35 mΩ. The unit operates within a temperature range of -55°C to +105°C and measures 20.32 mm in length, 11.43 mm in width, and 13.97 mm in height.
Feature Summary
- Toroidal core design for efficient magnetic flux containment
- Single-channel configuration for two-line filtering applications
- Through-hole termination for robust PCB integration
Applications
- Common mode EMI suppression in power circuits
- Signal integrity protection in electronic assemblies
- Industrial equipment noise filtering
Procurement Notes
Verify the specific datasheet revision and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the lead dimensions and pin spacing match the target PCB footprint requirements. Ensure the operating environment remains within the specified -55°C to +105°C thermal limits to maintain performance reliability. Cross-reference the part number suffix to confirm exact terminal specifications.
Selection Notes
Select this component when a high-current common mode choke with 5 A rating is required for space-constrained PCB designs. The toroidal geometry offers superior shielding compared to standard bobbin types. Evaluate the 35 mΩ DC resistance against voltage drop constraints in the power path. Consider the 850 µH inductance value for the specific frequency range of interference to be suppressed.
Part Context
This component belongs to the Bourns 7100 series of common mode chokes. The series utilizes toroidal cores to provide effective electromagnetic interference reduction. These components are engineered for general-purpose industrial and commercial electronics where reliable noise filtration is critical for system stability.
Replacement Considerations
The 7118-RC is a documented variant within the same series offering different inductance characteristics. Verify electrical compatibility and physical dimensions before substitution.
