SC-05-203

Common Mode Chokes Overview

The KEMET SC-05-203 is a through-hole common mode choke from the SC series, designed for AC line filtering applications. It features an inductance of 2 mH and supports a maximum DC current of 5 A with a rated voltage of 250 V. The component utilizes nickel-zinc ferrite material suitable for frequencies ≥150 kHz. Key electrical parameters include a maximum DC resistance of 70 mΩ (0.07 Ω) and a test frequency of 100 kHz. It operates within a temperature range of -25 °C to 120 °C and meets UL 94 V-0 flammability standards.

Common Mode Chokes Feature Summary

• Utilizes proprietary 5H, 7H, or 10H ferrite materials optimized for high-frequency noise suppression
• Designed for effective common mode interference reduction in AC power lines
• Through-hole construction ensures robust mechanical mounting stability

Common Mode Chokes Applications

• AC line input filtering for electronic equipment
• Noise suppression in power supply circuits
• EMI mitigation in consumer electronics

Common Mode Chokes Procurement Notes

Verify the specific ferrite material grade (5H, 7H, or 10H) required for your application, as this affects performance at target frequencies. Confirm that the through-hole package dimensions align with your PCB layout constraints. Ensure the operating environment remains within the specified -25 °C to 120 °C range to maintain reliability and prevent saturation under load conditions.

Common Mode Chokes Selection Notes

Select this component when a 2 mH inductance is required for 5 A AC line applications. The 70 mΩ DCR offers low insertion loss compared to higher-resistance alternatives. Consider the physical size and lead spacing if space is limited. Verify compatibility with soldering processes compatible with lead-free RoHS compliant components.

Common Mode Chokes Part Context

The SC-05-203 belongs to KEMET's SC series of standard common mode chokes. This series provides a wide variety of sizes and specifications tailored for general-purpose EMI filtering. The component is part of a broader family sharing similar mounting styles and core technologies but differing in inductance and current ratings.

Common Mode Chokes Replacement Considerations

Cross-reference with other SC series parts like SCF-05-350 for higher inductance needs. Ensure substitute components match the 2 mH value, 5 A current rating, and 250 V voltage rating. Verify equivalent ferrite material properties for similar frequency response characteristics.