USL1D

Single Diodes Overview

The Diotec Semiconductor USL1D is an ultrafast recovery surface-mount rectifier diode designed for high-speed switching applications. It features a maximum average forward rectified current of 1 A and a repetitive peak reverse voltage rating of 200 V. The device utilizes a low-profile SOD-123FL package, ensuring compatibility with automated assembly processes. Key electrical characteristics include a forward voltage below 1.0 V at 0.5 A and a reverse recovery time under 50 ns. It operates within a junction temperature range of -50°C to +150°C and supports a peak forward surge current of 23 A or 25 A depending on frequency.

Single Diodes Feature Summary

• Ultrafast recovery performance suitable for high-frequency rectification
• Low profile SMD-Gleichrichterdioden construction for space-constrained designs
• Compliant with RoHS directives and REACH regulations

Single Diodes Applications

• Rectification of higher frequencies
• High speed switching circuits
• Commercial and industrial grade power supplies

Single Diodes Procurement Notes

Verify the specific ordering suffix when procuring. Standard versions are commercial/industrial grade. Suffixes -Q indicate AEC-Q101 compliance, while -AQ denotes AEC-Q101 qualification. Confirm these designations match project requirements before finalizing orders, as they affect reliability standards and applicable automotive specifications.

Single Diodes Selection Notes

Select the USL1D for applications requiring fast switching speeds and low forward voltage drop in a compact footprint. Ensure the 200 V reverse voltage rating aligns with circuit peak inverse voltage demands. Consider thermal resistance limits and derating curves for ambient temperatures exceeding standard conditions to maintain reliable operation within the specified junction temperature range.

Single Diodes Part Context

The USL1D belongs to the USL1A through USL1M series of ultrafast recovery SMD rectifiers from Diotec Semiconductor. This family offers various voltage ratings ranging from 50 V to 1000 V while maintaining consistent current handling capabilities. The series is engineered for general-purpose rectification where rapid recovery times are critical for system efficiency and signal integrity.

Single Diodes Replacement Considerations

Direct substitutes within the same voltage class include other ultrafast rectifiers in the SOD-123FL package. Verify that replacement components meet the <50 ns reverse recovery time and 1 A current rating. Cross-reference pinout configurations and thermal characteristics to ensure mechanical and electrical compatibility without redesigning the PCB layout.