1N5403

Overview

The onsemi 1N5403 is a silicon rectifier diode belonging to the 1N5400 series, designed for general-purpose applications. It features a maximum average forward rectified current of 3 A and a peak repetitive reverse voltage rating of 300 V. The device utilizes a glass-passivated junction to ensure low leakage current and high reliability under varying thermal conditions. Housed in a DO-201AD (DO-27) axial leaded package, it supports through-hole mounting. Key electrical characteristics include a maximum non-repetitive peak forward surge current of 200 A and a maximum DC blocking voltage of 210 V. The component operates within a temperature range from -65°C to +150°C.

Feature Summary

• Glass-passivated junction structure provides enhanced stability and low reverse leakage current.
• High current capability with a 3 A continuous forward current rating suitable for power conversion.
• Robust mechanical design with solderable axial leads guaranteed for high-temperature soldering processes.

Applications

• General-purpose rectification in AC-to-DC power supply circuits.
• Freewheeling diode implementation in inductive load protection.
• Polarity protection in electronic circuit designs.

Procurement Notes

Verify the specific manufacturer part number suffix against official datasheets to confirm exact electrical tolerances and packaging specifications. Ensure the procurement source provides valid traceability documentation. Confirm that the component meets required environmental standards and RoHS compliance if applicable to the target assembly. Cross-reference the lot code and date code to ensure material integrity and storage condition adherence prior to integration into production lines.

Selection Notes

Select this component when a 3 A current capacity and 300 V reverse voltage blocking are required for standard recovery applications. Compare the DO-201AD package dimensions against board space constraints. Evaluate the thermal management requirements based on the 150°C maximum junction temperature limit. Consider the reverse recovery characteristics relative to the switching frequency of the intended circuit application.

Part Context

The 1N5403 is part of the widely utilized 1N540x series of silicon rectifier diodes manufactured by onsemi. This series offers standardized performance across various voltage ratings ranging from 50 V to 1000 V. The 1N5403 specifically addresses the 300 V requirement within this lineup. It serves as a fundamental discrete semiconductor component for industrial and consumer electronics requiring reliable unidirectional current flow.

Replacement Considerations

Compatible substitutes include Vishay 1N5403-E3/60 and generic equivalents such as BILIN 1N5403G. Verify that replacement parts maintain identical pinout configurations, current ratings, and voltage withstand capabilities. Ensure the alternative supplier's package dimensions match the existing footprint to avoid mechanical interference during assembly.