SRF1280-8R2Y

Overview

The Bourns SRF1280-8R2Y is a dual-winding shielded power inductor from the SRF1280 series, designed for surface-mount applications. It features an 8.2 µH nominal inductance with a ±30% tolerance. The component utilizes a ferrite core and wirewound construction within a 12.5 mm x 12.5 mm x 8.0 mm package. Key electrical parameters include a maximum DC resistance of 19.1 mΩ per coil and a saturation current of 12.2 A in parallel configuration. It operates reliably between -40°C and +125°C.

Feature Summary

• Dual-winding architecture supporting flexible series or parallel circuit connections
• Shielded design to minimize electromagnetic interference
• AEC-Q200 qualification for automotive reliability standards

Applications

• Automotive power supply circuits
• Point-of-load (POL) converters
• DC-DC converter output filtering

Procurement Notes

Verify the specific suffix 'Y' against the manufacturer's latest datasheet to confirm packaging details and terminal finish specifications. Ensure the selected variant matches the required inductance tolerance and current ratings for the target application environment. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when dual isolated windings are required for synchronous rectification or interleaved converter topologies. The high saturation current makes it suitable for high-power density designs. Consider the physical footprint constraints and thermal management requirements associated with the 1280 case size during PCB layout.

Part Context

This component belongs to the SRF1280 series of dual-winding shielded power inductors manufactured by Bourns Inc. The series is engineered for robust performance in demanding electronic environments, offering consistent electrical characteristics across temperature variations. It serves as a critical passive element in modern power management systems.

Replacement Considerations

Direct substitutes must match the 12.5x12.5mm footprint, 8.2µH value, and dual-winding configuration. Verify that alternative parts meet AEC-Q200 requirements if used in automotive contexts. Check DCR and saturation current limits to ensure equivalent performance.