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Product Detailed Parameters
- Description：CMC 7.3MH 9.3A 2LN TH
- Series：8100
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：9.3A
- DC Resistance (DCR) (Max)：32mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.650" L x 0.800" W (41.91mm x 20.32mm)
- Height (Max)：1.650" (41.91mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：7.3 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns 8118-RC is a through-hole common mode choke from the 8100 series, designed for noise suppression in two-line circuits. It features a toroidal core with an inductance of 7.3 mH at 1 kHz and supports a maximum DC current rating of 9.3 A. The component exhibits a maximum DC resistance (DCR) of 32 mOhm and offers a dielectric strength of 1500 Vrms. It operates reliably within a temperature range of -55°C to 105°C.
Feature Summary
- Provides common mode noise filtering for dual-line configurations
- High current handling capability suitable for power line applications
- Robust insulation with 1500 Vrms dielectric strength
Applications
- Power factor correction systems
- Switching power supplies
- Industrial equipment noise suppression
Procurement Notes
Verify the specific suffix against official Bourns documentation to confirm exact packaging or tolerance variations. Ensure the procurement channel provides valid manufacturer traceability. Cross-reference the DigiKey and Mouser part numbers with the original datasheet to confirm the 8118-RC designation matches the required 7.3 mH inductance and 9.3 A current rating specifications.
Selection Notes
Select this component when high current capacity and significant inductance are required for EMI reduction in two-wire lines. The low DCR minimizes power loss, while the wide operating temperature range ensures stability in harsh environments. Verify that the physical through-hole footprint and pin configuration align with the target PCB design constraints.
Part Context
This component belongs to the Bourns 8100 series of common mode chokes, which are engineered for robust performance in demanding electronic applications. The series utilizes toroidal cores to maximize inductance density while minimizing electromagnetic interference leakage. These components are integral to maintaining signal integrity and compliance in power distribution networks across various industrial and consumer sectors.
Replacement Considerations
Consult official Bourns substitution guides for verified equivalents. Generic replacements may not match the 7.3 mH inductance or 9.3 A current rating. Ensure any substitute maintains the same through-hole package and 1500 Vrms dielectric strength to preserve circuit safety and performance.
