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CM9900R-186 is listed in the Common Mode Chokes range at ChipApex. The manufacturer field lists Delevan. Its product description is CMC 18MH 270MA 2LN TH. Review the specifications below when checking this part for your BOM.
Common Mode Chokes specifications for CM9900R-186
- Description：CMC 18MH 270MA 2LN TH
- Series：CM9900R
- Mfr：Delevan
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：270mA
- DC Resistance (DCR) (Max)：2.45Ohm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.839" L x 0.740" W (21.30mm x 18.80mm)
- Height (Max)：0.669" (17.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：18 mH @ 1 kHz
- Impedance @ Frequency：-
Common Mode Chokes datasheet and documents for CM9900R-186
Common Mode Chokes Overview
The Delevan CM9900R-186 is a through-hole, PC mount common mode choke from the CM9900R series. It features an inductance of 18000 uH with a tolerance of +/- 25%. The component supports a maximum DC current of 270 mA and has a maximum DC resistance of 2.45 Ohms. It operates within a temperature range of -55 C to +125 C. Physical dimensions are 18.8 mm length, 21.3 mm width, and 17 mm height, with a lead spacing of 5.1 mm. The core material is ferrite, and it is unshielded.
Common Mode Chokes Feature Summary
- Radial through-hole mounting for PCB integration
- Ferrite core construction for common mode noise suppression
- Unshielded design suitable for standard EMI filtering applications
Common Mode Chokes Applications
- Electronic equipment power supply input filtering
- Signal line interference suppression
- General purpose EMI/RFI mitigation in industrial electronics
Common Mode Chokes Procurement Notes
Verify the specific part number CM9900R-186 against manufacturer datasheets to confirm electrical parameters and physical dimensions. Ensure compatibility with PCB layout requirements regarding radial lead spacing and mounting orientation. Check for RoHS compliance status and any specific handling instructions provided by Delevan for ferrite components.
Common Mode Chokes Selection Notes
Select this component when high inductance values are required for low-frequency common mode noise attenuation. Consider the 270 mA current rating and 2.45 Ohms DC resistance for circuit efficiency. Verify that the unshielded nature does not interfere with nearby sensitive components or require additional spatial clearance on the board.
Common Mode Chokes Part Context
The CM9900R-186 belongs to the Delevan CM9900R series of common mode chokes. This series offers various inductance values tailored for different filtering needs while maintaining consistent physical footprints and mounting styles. The component is designed for robust performance in demanding electronic environments.
Common Mode Chokes Replacement Considerations
Consult Delevan documentation for direct cross-references. Other CM9900R variants may offer different inductance levels but share similar mechanical characteristics. Ensure substitute parts match the 18000 uH specification and 270 mA current rating precisely.
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