SRR1280-101M

Fixed Inductors Overview

The Bourns SRR1280-101M is a shielded surface-mount power inductor from the SRR1280 series. It features a wirewound construction with a ferrite core, housed in a 5050 (12.5mm x 12.5mm x 7.5mm) package. The component provides an inductance of 100 µH with a tolerance of ±20%. It supports a maximum DC current of 2.1 A and a saturation current of 2 A. Key electrical parameters include a maximum DC resistance of 150 mΩ, a minimum Q factor of 18 at 100 kHz, and a self-resonant frequency of 9.5 MHz. It operates within a temperature range of -40°C to +125°C.

Fixed Inductors Feature Summary

• Shielded drum core design minimizes electromagnetic interference for stable circuit operation.
• Wirewound ferrite construction ensures high reliability and consistent performance under load.
• Surface-mount packaging facilitates automated assembly and compact board layout.

Fixed Inductors Applications

• DC/DC converter output filtering
• Point-of-load regulation stages
• Power delivery networks for digital circuits

Fixed Inductors Procurement Notes

Verify the manufacturer part number SRR1280-101M against official Bourns documentation to confirm specifications. Ensure compatibility with peak current requirements, as saturation limits are critical. Check RoHS compliance status if required by project standards. Confirm package dimensions match PCB footprint constraints before finalizing procurement.

Fixed Inductors Selection Notes

Select this component when a 100 µH inductance value is required with moderate current handling capabilities. The 150 mΩ DCR offers a balance between efficiency and size. Consider the 2.1 A continuous current rating against thermal dissipation needs. The shielded type is suitable for noise-sensitive environments where magnetic field containment is necessary.

Fixed Inductors Part Context

This part belongs to the Bourns SRR1280 series of shielded power inductors. The series utilizes a non-standard 1280 package size, offering higher current density compared to standard footprints. It is designed for general-purpose power electronics applications requiring reliable inductive components.

Fixed Inductors Replacement Considerations

Direct substitutes must match the 100 µH inductance, 12.5x12.5x7.5 mm footprint, and similar current ratings. Verify that alternative manufacturers provide equivalent shielding and saturation characteristics to ensure circuit stability without redesigning the PCB layout.

Fixed Inductors FAQ

What is the saturation current for the SRR1280-101M?

The saturation current is specified as 2 A.

Is the SRR1280-101M shielded?

Yes, it is a shielded inductor with a drum core design.