SRF0703-221M

Arrays, Signal Transformers Overview

The Bourns SRF0703-221M is a dual-winding shielded power inductor from the SRF0703 series, featuring a ferrite core and liquid-crystal polymer base. It has an inductance of 220 µH ±20% per winding. Electrical specifications include a maximum DC resistance of 148 mΩ (parallel) or 5.5 Ω (series). Rated currents are 0.52 A for parallel operation and 0.26 A for series connection. The component measures 7.6 mm x 7.6 mm x 3.4 mm and operates within a temperature range of -40°C to +125°C.

Arrays, Signal Transformers Feature Summary

• Dual-winding configuration with magnetic shielding to minimize radiation
• Ferrite core construction with liquid-crystal polymer base for thermal stability
• Surface-mount design suitable for automated PCB assembly

Arrays, Signal Transformers Applications

• DC-DC converter circuits requiring coupled inductors
• Power supply filtering applications
• Signal transformer implementations

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix 'M' indicates the standard tolerance variant. Confirm package availability matches project requirements, as options include tape and reel or cut tape. Ensure the operating temperature range aligns with the final system environment. Cross-reference datasheet electrical limits against circuit load conditions before ordering.

Arrays, Signal Transformers Selection Notes

Select this component when a compact, shielded dual-inductor solution is required for power conversion. Compare saturation and rated currents against peak load demands. Consider the physical footprint constraints relative to other SMD inductors. Verify compatibility with reflow soldering profiles specified in the manufacturer documentation.

Arrays, Signal Transformers Part Context

This part belongs to the Bourns SRF0703 series of shielded wirewound surface mount inductors. The series offers various inductance values ranging from 0.33 µH to 4000 µH. These components are designed for high-frequency power applications where low electromagnetic interference is critical due to their magnetic shielding.

Arrays, Signal Transformers Replacement Considerations

Check for direct substitutes within the same SRF0703 series with different inductance values if electrical parameters differ. Verify pinout and mechanical dimensions match existing PCB footprints before substituting with components from other manufacturers.