SRF1280-102M

Overview

The Bourns SRF1280-102M is a dual-winding shielded power inductor array from the SRF1280 series. It features a ferrite core and wirewound construction with a surface-mount package measuring 12.50mm x 12.50mm x 8.00mm. The component provides an inductance of 1 mH per coil, resulting in 4 mH for series connection and 1 mH for parallel connection. It has a tolerance of ±20%, a maximum DC resistance of 1.992 Ohms in parallel configuration, and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Dual-winding architecture supporting independent or combined circuit configurations
• Shielded design minimizes electromagnetic interference
• Ferrite core construction for stable magnetic performance

Applications

• SEPIC topology power supplies
• Communication equipment power systems
• Computer power management circuits
• LCD and flat panel display drivers

Procurement Notes

Verify the specific part number against official Bourns documentation to confirm electrical characteristics and physical dimensions. Ensure compatibility with PCB footprint requirements and thermal management strategies. Confirm RoHS compliance status through current manufacturer declarations before integration into final assemblies.

Selection Notes

Select this component when dual isolated windings are required in a compact form factor. Consider the series and parallel inductance values relative to circuit topology needs. Evaluate the saturation current ratings under expected operating conditions to ensure reliability within the specified temperature range.

Part Context

This component belongs to the SRF1280 series of dual-winding shielded power inductors manufactured by Bourns Inc. The series is designed for high-density power applications requiring multiple inductive elements in a single package. It complements other SMD power inductors in the Bourns portfolio for space-constrained designs.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided data.