1N5408

Overview

The SMC Diode Solutions 1N5408 is a glass-passivated silicon rectifier diode designed for general-purpose applications. It features a maximum average forward rectified current of 3A and a maximum repetitive peak reverse voltage of 1000V. The device utilizes a DO-201AD axial leaded package, ensuring reliable performance in through-hole mounting configurations. Key electrical characteristics include a low reverse leakage current of 5µA at the rated voltage and a standard recovery speed exceeding 500ns. The component supports a junction temperature range from -65°C to 150°C and offers high forward surge current capability.

Feature Summary

• Glass passivation provides mechanical strength and protects against external physical stress
• High forward surge current capability ensures robustness during transient load conditions
• Low reverse leakage current contributes to improved efficiency in blocking states
• Molded plastic construction meets UL flammability classification 94V-0 standards

Applications

• General-purpose half-wave rectification in AC to DC power supply circuits
• Bridge rectifier configurations for mains-powered electronic devices
• DC output stages in industrial control systems requiring high voltage isolation
• Freewheeling diodes in inductive load switching applications

Procurement Notes

Verify that the ordered component matches the specific manufacturer part number 1N5408 from SMC Diode Solutions. Confirm compliance with RoHS3 directives and REACH regulations as specified in the official datasheet. Ensure the package type corresponds to DO-201AD axial leads for proper PCB footprint compatibility. Check for any specific lot traceability requirements or additional testing protocols mandated by your quality assurance standards before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring a 1000V reverse voltage rating and 3A continuous current handling. The standard recovery time makes it suitable for low-frequency applications such as 50Hz or 60Hz power line rectification rather than high-speed switching. Consider the DO-201AD package size constraints and thermal dissipation capabilities relative to the expected ambient operating temperatures within the target enclosure design.

Part Context

This component belongs to the 1N540x series of general-purpose silicon rectifiers manufactured by SMC Diode Solutions. The series includes variants with different reverse voltage ratings ranging from 50V to 1000V, all sharing the same 3A average forward current capability and DO-201AD package form factor. The 1N5408 specifically represents the highest voltage variant within this standard lineup, providing maximum blocking capability for demanding power applications.

Replacement Considerations

Cross-reference with other manufacturers' 1N5408 equivalents to ensure pinout and electrical parameter compatibility. Verify that substitute components maintain the same DO-201AD package dimensions and lead spacing for direct board replacement.