SRF1260A-220M

Overview

The Bourns SRF1260A-220M is a coupled inductor array featuring two coils with a nominal inductance of 22 µH and ±20% tolerance. It utilizes a ferrite core within a shielded surface-mount package measuring 12.50 mm x 12.50 mm x 6.20 mm. The component supports parallel connection with a rated current of 3.7 A and saturation current of 4.71 A, or series connection with a rated current of 1.84 A and saturation current of 2.36 A. DC resistance is 45.1 mΩ in parallel and 172 mΩ in series. It operates between -40°C and +125°C and holds AEC-Q200 qualification.

Feature Summary

• Dual-coil magnetic shielding design minimizes electromagnetic interference
• AEC-Q200 automotive grade qualification for reliability
• Ferrite core construction for stable performance

Applications

• Automotive power supply circuits
• DC-DC converter input/output filtering
• Point-of-load regulation stages

Procurement Notes

Verify the specific suffix 'A' to confirm AEC-Q200 automotive qualification status against standard industrial variants. Confirm package dimensions match the 12.50mm footprint requirements. Ensure thermal management aligns with the 125°C maximum operating temperature limit during high-current operation.

Selection Notes

Select this component when dual-phase interleaving or coupled inductor topologies are required in space-constrained designs. The 22µH value suits moderate frequency switching applications. Verify that the 3.7A parallel current rating meets the peak load demands without exceeding saturation limits.

Part Context

This part belongs to the Bourns SRF1260 series of shielded coupled inductors. The series offers various inductance values in a standardized 1260 footprint. The 'A' designation specifically indicates automotive-grade compliance, distinguishing it from general-purpose industrial counterparts in the same physical form factor.

Replacement Considerations

SRF1260-220M serves as a non-automotive equivalent within the same series.