SU9VD-07040

Overview

The KEMET SU9VD-07040 is a through-hole common mode choke belonging to the SU-9VD series. It features an inductance of 40 μH and a maximum rated current of 0.7 A. The component has a DC resistance of 180 mΩ and operates at voltages up to 250 V ac. Designed for high-frequency applications, it utilizes a bobbin style construction suitable for PCB mounting.

Feature Summary

• Provides common mode noise suppression for two-line circuits
• Supports high-frequency operation with low DC resistance
• Features through-hole mounting for secure PCB integration

Applications

• High-frequency signal filtering
• Power supply input stages
• EMI suppression in electronic equipment

Procurement Notes

Verify the specific inductance value of 40 μH and current rating of 0.7 A against circuit requirements. Confirm that the through-hole package dimensions match the target PCB footprint. Ensure the operating temperature range accommodates the application environment, as the maximum operating temperature is specified at +75°C.

Selection Notes

Select this component when a compact common mode choke with 40 μH inductance is required for low-current applications up to 0.7 A. Consider the 180 mΩ DC resistance impact on power loss. Evaluate the 250 V ac voltage rating against system line voltages. Compare physical dimensions against available board space constraints.

Part Context

This part belongs to the KEMET SU-9VD series of common mode chokes. These components are designed for general-purpose EMI filtering in consumer and industrial electronics. The series offers various inductance values and current ratings within a standardized through-hole form factor.

Replacement Considerations

Check datasheets for alternative common mode chokes with matching 40 μH inductance and similar current ratings. Verify pin compatibility and mechanical fit before substitution.