SRF1280-471M

Overview

The Bourns SRF1280-471M is a dual-winding shielded power inductor array designed for surface-mount applications. It features an inductance of 470 µH with a ±20% tolerance. The component measures 12.50 mm x 12.50 mm x 8.00 mm and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a saturation current of 5.28 A (parallel) or 2.64 A (series), a rated current of 2.95 A (parallel) or 1.47 A (series), and a maximum DC resistance of 89.8 mΩ (parallel).

Feature Summary

• Dual-winding configuration allows flexible series or parallel circuit integration.
• Shielded magnetic design minimizes electromagnetic interference.
• High saturation and rated currents support demanding power delivery requirements.

Applications

• DC/DC converter output filtering
• Automotive power distribution systems
• Point-of-load regulation circuits

Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm packaging options such as tape and reel quantities. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Ensure the ordering part number matches the required inductance value and tolerance specifications for the target application.

Selection Notes

Select this component when high current handling and compact footprint are required. Compare parallel versus series connection performance based on system voltage and current needs. Evaluate thermal management requirements given the operating temperature range and DC resistance characteristics.

Part Context

This part belongs to the SRF1280 series of dual-winding shielded power inductors from Bourns Inc. The series is engineered for high-density power electronics, offering robust magnetic shielding and stable inductance under load conditions suitable for automotive and industrial environments.

Replacement Considerations

Check the SRF1280 series datasheet for alternative inductance values within the same package dimensions. Verify pin compatibility and electrical parameter overlaps before substituting with other manufacturers' dual-winding arrays.