SSR21NV-031810

Overview

The KEMET SSR21NV-031810 is a through-hole common mode filter choke designed for AC line filtering applications. It features a single channel configuration with an inductance of 181 mH at a test frequency of 10 kHz and a maximum DC current rating of 300 mA. The component supports a voltage rating of 250 VAC and exhibits a maximum DC resistance of 2.85 Ohms. Constructed with proprietary S15H ferrite material, it operates within a temperature range of -40°C to +120°C. The physical dimensions are characterized by a height of 27 mm, width of 16 mm, and length of 3.5 mm, utilizing a non-divided bobbin design to achieve high permeability and large inductance in a compact form factor.

Feature Summary

• Utilizes proprietary S15H ferrite material for high permeability and effective noise suppression
• Employs a non-divided bobbin structure to generate large inductance values
• Designed as a low-profile, lightweight component suitable for space-constrained PCB mounting

Applications

• AC line filtering in electronic equipment
• Common mode noise suppression circuits
• Power supply input stages requiring EMI reduction

Procurement Notes

Verify the specific suffix designation against official KEMET documentation to ensure correct electrical parameters. Confirm that the required inductance and current ratings align with system specifications before procurement. Check for any recent product change notifications or end-of-life status updates from the manufacturer. Ensure compatibility with standard through-hole assembly processes and verify thermal performance requirements relative to the specified operating temperature range.

Selection Notes

Select this component when high inductance is required for common mode noise attenuation in AC line applications. The S15H ferrite core provides superior magnetic properties compared to standard materials. Consider the physical footprint constraints as the unit measures 27 mm in height. Evaluate the 300 mA current rating against peak load conditions to prevent saturation. The through-hole termination style dictates the PCB layout strategy and mechanical mounting requirements.

Part Context

This part belongs to the KEMET SSR21NV series of common mode chokes. The series is characterized by the use of specialized ferrite cores and non-divided bobbin designs to maximize inductance density. These components are engineered for robust performance in AC line environments, offering reliable noise filtration across a wide temperature range while maintaining a compact physical profile for modern electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify cross-reference availability directly with KEMET technical support or authorized distributors using the full part number and specific electrical requirements.