7124

Overview

The Bourns 7124-RC is a vertical, through-hole common mode choke designed for EMI suppression in two-line circuits. It features an inductance of 2.55 mH at 1 kHz with a tolerance of 15%. The component supports a maximum DC current of 10 A and has a maximum DC resistance of 20 mOhms. It operates within a minimum temperature range of -55°C. The package utilizes a vertical orientation with no base and two PC pins for PCB integration.

Feature Summary

• Vertical through-hole mounting configuration with two PC pins
• Common mode choke design for two-line EMI suppression
• High current handling capability up to 10 A

Applications

• EMI filtering in power supply lines
• Signal integrity protection in industrial control systems
• Noise reduction in consumer electronic devices

Procurement Notes

Verify the specific suffix (e.g., RC) against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging details. Ensure the vertical pin configuration matches the target PCB footprint requirements. Cross-reference the 10 A current rating with actual thermal management conditions in the final assembly to prevent performance degradation.

Selection Notes

Select this component when a robust, high-current common mode choke is required for vertical board mounting. The 2.55 mH inductance provides effective noise attenuation for standard line frequencies. Consider the 20 mOhm DCR impact on voltage drop if low-loss conduction is critical. Verify that the 15% tolerance meets the system's EMC compliance margins.

Part Context

This component belongs to Bourns' magnetic components portfolio, specifically engineered for electromagnetic interference suppression. Common mode chokes like the 7124 are essential for maintaining signal integrity by attenuating noise currents that flow in phase on multiple conductors. They are widely used in environments requiring reliable noise filtration without significant signal distortion.

Replacement Considerations

Consult official Bourns documentation for direct cross-references. Ensure any substitute maintains the 2.55 mH inductance, 10 A current rating, and vertical 2-pin form factor to fit existing PCB layouts without mechanical modification.