1N5821RL

Overview

The onsemi 1N5821RL is a silicon Schottky barrier rectifier designed for high-efficiency power conversion. It features a 30V maximum repetitive peak reverse voltage and supports a continuous forward current of 3A in the DO-201AD axial through-hole package. The device exhibits a low forward voltage drop of 500mV at rated current, minimizing conduction losses. It withstands an 80A non-repetitive peak forward surge current and operates reliably within a junction temperature range of -65°C to +125°C.

Feature Summary

• Schottky barrier technology ensures fast switching speeds and minimal reverse recovery charge.
• Low forward voltage drop reduces power dissipation and improves overall system efficiency.
• High thermal stability allows operation at elevated junction temperatures up to 125°C.
• Robust construction provides high surge current capability for transient protection.

Applications

• DC-to-DC converter freewheeling diodes
• Power supply output rectification
• Reverse polarity protection circuits

Procurement Notes

Verify the specific suffix RL against the manufacturer's official datasheet to confirm packaging configuration and compliance status. Cross-reference the component marking with the approved visual identification guide. Ensure the source document explicitly lists this part number as active or available, noting that related variants may have different discontinuation statuses.

Selection Notes

Select this component when a low-loss rectification solution is required for moderate voltage applications. The DO-201AD package suits designs needing robust through-hole mounting. Compare the 3A current rating against circuit load requirements and ensure the 30V breakdown voltage exceeds the maximum operating reverse voltage with adequate margin.

Part Context

This component belongs to the standard 1N58xx series of Schottky rectifiers widely used in general-purpose electronics. The 1N5821 variant specifically targets 30V applications, distinguishing it from lower-voltage counterparts like the 1N5819. It serves as a direct functional replacement for generic 1N5821 specifications across various industrial and consumer electronic designs.

Replacement Considerations

• 1N5821RLG