CM9900-186

Common Mode Chokes Overview

The Delevan CM9900-186 is a through-hole common mode choke designed for PCB mounting. It features an inductance of 18,000 µH with a tolerance of ±25%. The component has a maximum DC current rating of 270 mA and 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 in length, 21.3 mm in width, and 17 mm in height, with a lead spacing of 5.1 mm. The core material is ferrite, and it is unshielded.

Common Mode Chokes Feature Summary

• Provides common mode noise suppression via high inductance filtering
• Utilizes a ferrite core for effective electromagnetic interference reduction
• Supports radial through-hole mounting for standard PCB integration

Common Mode Chokes Applications

• Data line filtering in electronic circuits
• Common mode noise suppression in signal transmission lines
• Electromagnetic interference mitigation in communication equipment

Common Mode Chokes Procurement Notes

Verify the exact part number suffix, as variations such as CM9900R-186 may exist within the same series. Confirm RoHS compliance status directly with the manufacturer or authorized distributor documentation. Ensure that the specified inductance and current ratings align with the specific circuit requirements before procurement. Check for any specific packaging or reel quantity constraints associated with the ordering code.

Common Mode Chokes Selection Notes

Select this component when a high inductance value of 18 mH is required for common mode noise attenuation. The 270 mA current rating suits low-power signal lines rather than high-current power applications. Consider the physical footprint and lead spacing for PCB layout compatibility. The wide operating temperature range makes it suitable for environments subject to thermal variation.

Common Mode Chokes Part Context

This component belongs to the CM9900 series of common mode chokes manufactured by API Delevan. The series offers various inductance values tailored for different filtering needs. These components are characterized by their radial lead configuration and ferrite core construction, providing reliable performance in suppressing unwanted common mode signals across data and communication interfaces.

Common Mode Chokes Replacement Considerations

Cross-reference with other Delevan CM9900 series variants if different inductance values are needed. Verify pinout and dimensional compatibility when substituting with components from other manufacturers. Ensure that alternative parts meet the same electrical specifications for inductance, current rating, and DC resistance.