CM9900R-126

Common Mode Chokes Overview

The Delevan CM9900R-126 is a through-hole, PC-mount common mode choke designed for PCB integration. It features a ferrite core and radial termination with a 5.1 mm lead spacing. The component provides an inductance of 12,000 uH (12 mH) at a test frequency of 1 kHz, with a tolerance of +/- 25%. It supports a maximum DC current of 270 mA and has a maximum DC resistance of 1.98 Ohms. Operating temperatures range from -55°C to +125°C. Physical dimensions are 18.8 mm length, 21.3 mm width, and 17 mm height.

Common Mode Chokes Feature Summary

• Radial through-hole mounting configuration for direct PCB insertion
• Ferrite core construction for effective common mode noise suppression
• Unshielded design suitable for standard electromagnetic environments

Common Mode Chokes Applications

• Power supply input filtering
• Signal line noise reduction
• Electromagnetic interference suppression in electronic circuits

Common Mode Chokes Procurement Notes

Verify the specific suffix 'R' against manufacturer documentation to confirm RoHS compliance status, as sources indicate variations within the series. Confirm lead spacing and physical dimensions match the target PCB footprint. Ensure the 270 mA current rating meets circuit requirements under operating temperature conditions up to 125°C.

Common Mode Chokes Selection Notes

Select this component when high inductance values are required for low-frequency common mode noise attenuation. The radial package suits prototyping or applications where surface mount space is unavailable. Verify that the 1.98 Ohm DC resistance does not cause excessive voltage drop in the signal path.

Common Mode Chokes Part Context

Part of the Delevan CM9900R series, which offers various inductance options in a standardized through-hole form factor. This series is characterized by ferrite cores and radial leads, providing consistent mechanical dimensions across different electrical specifications for easier board layout planning.

Common Mode Chokes Replacement Considerations

Check for CM9900-126 as a potential variant, noting differences in packaging or compliance status. Verify exact inductance and current ratings before substitution to ensure circuit performance remains unaffected.