SRF1280A-R47Y

Overview

The SRF1280A-R47Y is a dual-winding shielded power inductor from the Bourns SRF1280A series. It features an inductance of 0.47 µH with a tolerance of ±30%. The component has a maximum DC resistance of 5.5 mΩ and supports a rated current of 17.9 A, with a saturation current of 56 A. It utilizes a surface-mount package measuring 12.50 mm x 12.50 mm x 8.00 mm and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Dual-winding configuration for coupled circuit applications
• Magnetic shielding design to minimize electromagnetic interference
• High saturation current capability for robust power handling

Applications

• Automotive electronic systems
• DC/DC converter circuits
• Power supply modules requiring high current density

Procurement Notes

Verify the specific suffix 'R47Y' corresponds to the 0.47 µH value and ±30% tolerance. Confirm RoHS3 compliance status and MSL rating during sourcing. Ensure the ordering quantity matches the required tape and reel specifications for automated assembly processes.

Selection Notes

Select this component when a compact, high-current coupled inductor is required for automotive or industrial power stages. The dual-winding architecture suits interleaved or multiphase designs. Verify that the 17.9 A rated current and 56 A saturation current meet the peak load requirements of the target application.

Part Context

This part belongs to the SRF1280A series of dual-winding shielded power inductors manufactured by Bourns Inc. The series is designed for demanding environments, offering magnetic shielding and high thermal stability. It serves as a specialized passive component for modern power electronics where space constraints and efficiency are critical.

Replacement Considerations

Check for direct substitutes within the SRF1280A series with compatible inductance values. Verify pinout compatibility and physical dimensions before replacing. Ensure any alternative component meets the same saturation and rated current specifications.