SRF1280A-100M

Overview

The Bourns SRF1280A-100M is a dual-winding shielded power inductor from the SRF1280A series, designed for surface mount applications. It features a ferrite core and wirewound construction within a 1280 package (12.5 x 12.5 x 8 mm). The component provides an inductance of 10 µH with a ±20% tolerance. Key electrical specifications include a maximum DC current of 6.04 A, a minimum Q factor of 24, and a self-resonant frequency of 17 MHz. It operates between -40°C and +125°C.

Feature Summary

• Dual-winding architecture allows flexible configuration for parallel, series, or transformer applications.
• Shielded design minimizes electromagnetic interference and magnetic flux leakage.
• High-current capability supports demanding power supply requirements.
• Robust construction suitable for high-reliability automotive environments.

Applications

• Automotive electronics systems
• DC/DC converter circuits
• Power management modules

Procurement Notes

Verify the specific suffix 'A' to confirm the dual-winding variant, as standard SRR1280 models differ structurally. Confirm RoHS compliance status through official documentation. Ensure the selected packaging matches production needs, as availability varies between cut tape and reel formats. Cross-reference datasheet parameters against circuit requirements before finalizing procurement.

Selection Notes

Select this component when dual-inductor functionality or coupled winding configurations are required in a compact footprint. The 1280 package size offers a balance between current handling and board space efficiency. Consider the 6.04 A saturation current rating for high-power density designs. Verify thermal performance under load conditions given the 125°C maximum operating temperature limit.

Part Context

This part belongs to the SRF1280A series of dual-winding shielded power inductors by Bourns. Unlike the single-winding SRR1280 series, the SRF1280A series is specifically engineered for applications requiring two isolated windings within a single shielded package. This series is often utilized in automotive-grade applications due to its robust construction and high current capabilities.

Replacement Considerations

Direct substitutes include other Bourns SRF1280A series variants with different inductance values. Single-winding SRR1280 models are not direct replacements due to structural differences. Evaluate alternative manufacturers' dual-winding shielded inductors only if pin compatibility and electrical parameters match exactly.

FAQ

What is the difference between SRR1280 and SRF1280A?

The SRR1280 is a single-winding inductor, while the SRF1280A is a dual-winding inductor capable of series, parallel, or transformer configurations.

Is the SRF1280A-100M suitable for automotive applications?

Yes, the SRF1280A series is designed for automotive electronics and meets relevant reliability standards.