SRF1280A-471M

Overview

The Bourns SRF1280A-471M is a dual-winding shielded power inductor array designed for surface-mount applications. It features two coils with an individual inductance of 470 µH and a tolerance of ±20%. The component operates within a temperature range of -40°C to +125°C. Key electrical specifications include a maximum DC resistance of 0.865 Ω per coil, a saturation current of 0.85 A, and a rated current of 1.68 A. The package dimensions are 12.50 mm x 12.50 mm x 8.00 mm.

Feature Summary

• Dual-winding configuration allows flexible series or parallel circuit integration
• Shielded magnetic structure minimizes electromagnetic interference
• RoHS compliant and halogen-free construction
• Automotive-grade reliability meeting AEC-Q200 standards

Applications

• DC/DC converter output filtering
• Automotive electronic control units
• High-density power supply designs

Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm exact electrical tolerances and packaging options. Ensure the ordering code matches the required quantity format, such as tape and reel or cut tape. Confirm RoHS compliance status and lead times directly with authorized distributors prior to finalizing procurement orders.

Selection Notes

Select this component when dual-inductor functionality is required in a compact footprint. Evaluate the saturation current limits relative to peak load conditions. Consider the thermal performance at maximum operating temperatures. Verify that the shielded design meets the system's electromagnetic compatibility requirements.

Part Context

This part belongs to the SRF1280A series of dual-winding shielded power inductors from Bourns. The series is engineered for high-current applications requiring space efficiency. These components are widely used in automotive and industrial sectors where reliability under harsh environmental conditions is critical.

Replacement Considerations

Consult the official Bourns cross-reference guide for verified substitutes. Ensure replacement parts match the 12.50mm x 12.50mm footprint and dual-coil architecture. Verify identical inductance values and current ratings to maintain circuit performance.