SB120

Single Diodes Overview

The SB120 is a silicon Schottky barrier rectifier manufactured by Diotec Semiconductor, distributed by onsemi. It features a maximum repetitive peak reverse voltage of 20 V and an average forward rectified current of 1 A in a DO-204AC (DO-15) axial lead package. The device exhibits a typical forward voltage drop of 500 mV at 1 A and a maximum reverse leakage current of 500 µA at 20 V. It operates within a junction temperature range of -50°C to 150°C.

Single Diodes Feature Summary

• Schottky barrier technology for low forward voltage drop
• Axial lead plastic package for through-hole mounting
• High thermal stability with extended operating temperature range

Single Diodes Applications

• Low voltage high frequency inverters
• Free wheeling diodes
• Polarity protection circuits

Single Diodes Procurement Notes

Verify the manufacturer designation carefully, as the SB120 part number is primarily associated with Diotec Semiconductor. Confirm that the specific batch or distributor listing corresponds to the Diotec product specifications rather than generic equivalents. Ensure the package type matches the required DO-204AC form factor for your design.

Single Diodes Selection Notes

Select this component for applications requiring low forward voltage loss and fast switching characteristics in low-voltage environments. The 1 A current rating and 20 V blocking capability define its operational limits. Consider the axial lead package constraints for PCB layout and thermal management requirements compared to surface-mount alternatives.

Single Diodes Part Context

This component belongs to the general category of signal and power diodes. Specifically, it is a Schottky rectifier designed for efficiency in power conversion stages. Unlike standard PN junction diodes, Schottky devices utilize a metal-semiconductor junction to achieve faster recovery times and lower conduction losses.

Single Diodes Replacement Considerations

Cross-reference with other 20 V, 1 A Schottky diodes in the DO-15 package. Verify pinout compatibility and thermal resistance values when substituting with parts from different manufacturers.