SRF1260-331M

Overview

The SRF1260-331M is a shielded dual-winding power inductor from the Bourns SRF1260 series, designed for surface-mount applications. It features an iron core and measures 12.5mm x 12.5mm x 6mm. The component provides 330 µH inductance per coil with ±20% tolerance. In parallel configuration, it supports a rated current of 1.06 A and saturation current of 1.22 A, with a maximum DC resistance of 0.574 Ω. In series configuration, it offers 1.32 mH inductance, supporting 0.53 A rated current and 0.61 A saturation current, with a maximum DC resistance of 2.29 Ω. Operating temperature ranges from -40°C to +125°C.

Feature Summary

• Dual-winding architecture allows flexible series or parallel circuit integration
• Shielded magnetic structure minimizes electromagnetic interference
• Robust construction suitable for high-current power supply designs

Applications

• DC-DC converter output filtering
• Power module input/output stages
• High-density power distribution networks

Procurement Notes

Verify the specific package variant (TR, CT, or Digi-Reel) required for your assembly line equipment. Confirm that the dual-coil pinout matches your PCB footprint design. Ensure thermal management strategies account for the specified saturation currents at operating temperatures. Cross-reference the manufacturer's latest datasheet for any recent mechanical or electrical updates before finalizing procurement orders.

Selection Notes

Select this component when space-constrained designs require coupled inductors with high current handling capabilities. The dual-winding option enables cost reduction by replacing two single inductors. Evaluate the parallel versus series connection requirements based on the target voltage and current levels. Ensure the 12.5mm square footprint fits within the available board area constraints.

Part Context

This part belongs to the SRF1260 series of shielded power inductors manufactured by Bourns Inc. The series is characterized by low-profile packaging and high saturation currents, making it suitable for modern compact electronic devices. The SRF1260-331M specifically utilizes a dual-winding configuration to provide versatile inductance options for complex power management circuits.

Replacement Considerations

Direct substitutes include other SRF1260 series variants with similar inductance values. Verify compatibility with existing PCB footprints and thermal requirements when considering alternative manufacturers' dual-winding shielded inductors.