SB820

Single Diodes Overview

The Diotec Semiconductor SB820 is a Schottky Barrier Rectifier Diode designed for high-efficiency power conversion. It features an average forward current rating of 8.0 A and a maximum repetitive peak reverse voltage of 20 V. The device exhibits a low forward voltage drop, specified as less than 0.55 V at 8 A and 25°C, with a typical junction capacitance of 4 pF. Peak forward surge current capability reaches 155 A at 50 Hz and 180 A at 60 Hz. Operating junction temperature ranges from -50°C to +150°C.

Single Diodes Feature Summary

• Schottky barrier construction ensures low forward voltage drop and minimal power loss
• Guard ring design provides transient overvoltage protection
• High surge current capability supports robust operation under load spikes
• Plastic molding compound meets UL flammability classification 94V-0

Single Diodes Applications

• Free-wheeling diodes in DC-DC converters
• Output rectification in switching power supplies
• Polarity protection circuits
• General-purpose rectification in industrial electronics

Single Diodes Procurement Notes

Verify the specific manufacturer source when sourcing this component, as multiple vendors produce identical part numbers within the SB8 series. Confirm that the received units match the Diotec Semiconductor datasheet specifications regarding thermal resistance and package dimensions. Ensure compliance with RoHS and Halogen-free requirements if mandated by your assembly standards. Cross-reference ordering suffixes carefully to confirm package type and tape/reel specifications.

Single Diodes Selection Notes

Select the SB820 when an 8 A continuous current rating and 20 V blocking voltage are required. This component is suitable for applications prioritizing low conduction losses due to its Schottky technology. Consider the thermal environment, as derating curves indicate reduced current capacity at elevated ambient temperatures. Verify that the package style matches the PCB footprint and mounting constraints of the target design.

Single Diodes Part Context

The SB820 belongs to the Diotec SB8 series of Schottky Barrier Rectifiers, which covers current ratings from 8 A up to higher variants like the SB8100. These devices share common mechanical characteristics, including the DO-201AD axial leaded package. The series is engineered for general-purpose rectification where efficiency and speed are critical factors in power management systems.

Single Diodes Replacement Considerations

Compatible substitutes include the Panasonic SB820 and Taiwan Semiconductor SR820HB0. Verify that replacement parts maintain the same 8 A current rating and 20 V reverse voltage specification. Ensure the alternative component utilizes the DO-201AD package or an electrically equivalent form factor for direct board integration.