SRR1240-471K

Fixed Inductors Overview

The SRR1240-471K is a shielded drum core, wirewound power inductor from the Bourns SRR1240 series. It features an inductance of 470 µH with a tolerance of ±10%. The component has a maximum DC resistance of 1.35 Ohms and supports a saturation current of 600 mA. Its maximum RMS current rating is 620 mA. The device operates within a temperature range starting at -40°C.

Fixed Inductors Feature Summary

• Shielded drum core construction minimizes magnetic field interference
• Wirewound design for stable inductance performance
• Surface mount package suitable for automated assembly

Fixed Inductors Applications

• Power supply filtering circuits
• DC-DC converter input or output stages
• General purpose signal conditioning

Fixed Inductors Procurement Notes

Verify the specific ordering suffix matches the required tolerance and packaging configuration. Confirm that the thermal ratings align with the target application's operating environment. Ensure the footprint dimensions correspond to the PCB layout requirements. Cross-reference the manufacturer datasheet for any recent updates to mechanical specifications or material compliance status before finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component when a 470 µH inductance value is required with moderate current handling capabilities. The shielded design is appropriate for applications sensitive to electromagnetic interference. Consider the 1.35 Ohm DC resistance impact on overall circuit efficiency. Evaluate the saturation current limit against peak load conditions to prevent performance degradation during transient events.

Fixed Inductors Part Context

This part belongs to the SRR1240 series of shielded surface mount power inductors. The series offers various inductance values optimized for different power delivery applications. The SRR1240-471K specifically targets circuits requiring higher inductance with compact form factor constraints. It complements other components in power management subsystems by providing energy storage and noise suppression.

Fixed Inductors Replacement Considerations

Direct substitutes include other SRR1240 series variants with compatible electrical parameters. Verify equivalent inductance, current ratings, and physical dimensions before substitution. Alternative manufacturers may offer similar shielded drum core inductors but require thorough validation of pinout and thermal characteristics.