SRR4011-1R5YL

Fixed Inductors Overview

The SRR4011-1R5YL is a shielded surface-mount power inductor from Bourns, designed for high-current applications. It features a ferrite core and measures 4.8 x 4.8 x 1.15 mm. The nominal inductance is 1.5 µH with a tolerance of ±30%. It has a DC resistance (DCR) of 56 mΩ, a saturation current of 2.3 A, and a rated current of 2.1 A. Operating temperature range is -40°C to +125°C.

Fixed Inductors Feature Summary

• Shielded construction minimizes electromagnetic interference (EMI).
• Compact surface-mount design suitable for space-constrained PCB layouts.
• High saturation current capability for efficient power delivery.

Fixed Inductors Applications

• Point-of-load (POL) voltage regulation modules.
• DC-DC converter output filtering.
• Portable electronic device power management circuits.

Fixed Inductors Procurement Notes

Verify the specific ordering suffix 'YL' matches the required tape-and-reel packaging configuration. Confirm that the component's lead-free status and RoHS compliance align with your assembly process requirements. Ensure the supplier provides valid manufacturer traceability documentation for quality assurance purposes.

Fixed Inductors Selection Notes

Select this component when a compact footprint is critical alongside moderate inductance values. The 1.5 µH value supports switching frequencies typical in modern power supplies. Evaluate the 2.3 A saturation current against peak load demands to prevent performance degradation under transient conditions.

Fixed Inductors Part Context

This part belongs to the SRR4011 series of shielded power inductors. The series offers various inductance options within the same 4.8 x 4.8 mm package size, allowing designers to standardize board space while adjusting electrical characteristics for different power stages.

Fixed Inductors Replacement Considerations

Direct substitutes include other SRR4011 variants with identical dimensions but different inductance or current ratings. Cross-reference with competitor shielded SMD inductors having matching 4.8x4.8x1.15mm footprints and similar 1.5µH/2.3A specifications if supply constraints exist.

Fixed Inductors FAQ

What is the difference between saturation current and rated current?

Saturation current (2.3 A) is the point where inductance drops significantly due to core magnetic saturation. Rated current (2.1 A) is typically defined by a specific temperature rise limit, such as 40°C above ambient.

Is the SRR4011-1R5YL suitable for automotive applications?

While not explicitly listed as AEC-Q200 certified in general datasheets, the SRR4011 series is widely used in industrial and consumer electronics. Verify specific automotive qualification requirements with the manufacturer for critical safety applications.