1N5391-T

Overview

The Diodes Incorporated 1N5391-T is a discontinued silicon rectifier diode designed for general-purpose applications. It features a DO-15 plastic package with axial leads and supports a maximum average forward rectified current of 1.5 A at 70°C ambient temperature. The device provides a peak repetitive reverse voltage of 50 V, with a typical forward voltage drop of 1.1 V at rated current. It withstands non-repetitive peak forward surge currents up to 50 A for an 8.3 ms half-sine wave. Operating temperatures range from -65°C to +150°C.

Feature Summary

• Fast switching characteristics for high efficiency
• High current capability combined with low forward voltage drop
• Low reverse leakage current performance
• Surge overload rating capable of handling 50A peak

Applications

• General purpose rectification in power supplies
• Half-wave rectification circuits
• DC blocking applications

Procurement Notes

Verify component status carefully as this specific part number is officially listed as discontinued by the manufacturer since August 2009. Confirm availability through authorized distributors or secondary markets if sourcing is required. Ensure that any replacement components meet the original electrical specifications and mechanical dimensions to maintain circuit integrity and safety compliance.

Selection Notes

Select this component only if legacy compatibility is strictly required due to its discontinued status. For new designs, consider modern equivalents that offer similar 1.5 A current ratings and 50 V reverse voltage capabilities. Evaluate alternative packages such as DO-41 if space constraints differ, noting that the 'S' suffix indicates the smaller package variant while the base model utilizes the larger DO-15 housing.

Part Context

This component belongs to the 1N5391/S through 1N5399/S series of 1.5 A rectifiers manufactured by Diodes Incorporated. The series covers a voltage range from 50 V to 1000 V, allowing designers to select appropriate reverse voltage ratings for various DC blocking requirements. The 'T' suffix specifically denotes tape and reel packaging for automated assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is discontinued, engineers must identify cross-reference parts based on matching electrical parameters such as 1.5 A current, 50 V reverse voltage, and DO-15 package compatibility.