1N5820

Overview

The STMicroelectronics 1N5820 is a low-drop power Schottky rectifier designed for switch mode power supplies and high-frequency DC to DC converters. Packaged in DO-201AD, it features a repetitive peak reverse voltage of 20 V and an average forward current rating of 3 A at 100°C. The device exhibits extremely fast switching with negligible switching losses and very small conduction losses. It supports a non-repetitive surge forward current of 80 A and includes specified avalanche capability.

Feature Summary

• Extremely fast switching with negligible switching losses
• Very small conduction losses due to low forward voltage drop
• Specified avalanche capability for enhanced robustness

Applications

• Low voltage, high frequency inverters
• Free wheeling diodes in power circuits
• Polarity protection applications
• Small battery chargers

Procurement Notes

Verify the specific ordering suffix (e.g., RL for tape and reel) against the required delivery mode, as base quantities vary between ammopack and reel configurations. Confirm compliance with UL94 V0 epoxy standards if flame retardancy is required for the assembly process. Ensure lead length specifications are met for thermal resistance calculations during integration.

Selection Notes

Select this component for designs requiring low forward voltage drop to minimize conduction losses in low-voltage applications. Consider the 20 V reverse voltage rating when designing for supply rails or clamping circuits. Evaluate thermal management requirements based on the junction-to-ambient thermal resistance, particularly for continuous operation near the maximum temperature limits.

Part Context

This device belongs to the 1N582x series of axial power Schottky rectifiers from STMicroelectronics. The series shares common packaging in DO-201AD plastic cases but varies in reverse voltage ratings across the family. The 1N5820 specifically targets the 20 V segment, complementing higher voltage variants within the same low-loss architectural framework.

Replacement Considerations

Cross-reference with other manufacturers' 1N5820 equivalents ensuring identical DO-201AD package dimensions and electrical parameters. Verify that substitute parts maintain comparable avalanche energy ratings and thermal characteristics to ensure circuit reliability without redesign.

FAQ

Does the 1N5820 support avalanche breakdown?

Yes, the datasheet specifies avalanche capability for the 1N5820, including repetitive peak avalanche power ratings under defined pulse conditions.

What is the maximum operating junction temperature?

The maximum operating junction temperature for the 1N5820 is 150°C.