SRF1280A-681M

Overview

The Bourns SRF1280A-681M is a dual-winding shielded power inductor array designed for surface-mount applications. It features an inductance of 680 µH with a ±20% tolerance. The component operates within a temperature range of -40°C to +125°C and meets AEC-Q200 automotive qualification standards. Electrical characteristics include a self-resonant frequency of 1.7 MHz and a minimum Q factor of 26 at 796 kHz. Current ratings are specified as 380 mA in series configuration and 760 mA in parallel configuration.

Feature Summary

• Dual-winding magnetic shielding design reduces electromagnetic interference
• Automotive-grade reliability certified under AEC-Q200 standards
• High thermal stability suitable for extreme operating environments

Applications

• Automotive electronic systems
• DC/DC converter circuits
• Power supply modules

Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm electrical parameters and mechanical dimensions. Ensure the selected package type matches the intended surface-mount assembly process. Cross-reference official specifications against distributor listings to validate part authenticity and compliance with required industry standards.

Selection Notes

Select this component for designs requiring coupled inductors with high current handling capabilities in compact footprints. Evaluate the series versus parallel connection requirements based on the target circuit's voltage and current constraints. Confirm that the physical dimensions fit within the available board space and that the thermal performance aligns with the system's heat dissipation strategy.

Part Context

This component belongs to the SRF1280A series, which consists of shielded power inductors manufactured by Bourns. The series is engineered for high-performance applications where space efficiency and signal integrity are critical. These inductors utilize ferrite core materials to provide stable inductance values across varying load conditions.

Replacement Considerations

Direct substitutes may include other dual-winding shielded inductors from the same series with compatible pinouts and electrical ratings. Verify that any alternative component maintains the same AEC-Q200 certification if automotive usage is required.