1N5398

Overview

The onsemi 1N5398 is a general-purpose plastic rectifier diode designed for AC-to-DC conversion and power supply applications. It features an average forward current rating of 1.5 A and a maximum repetitive reverse voltage of 800 V. The device utilizes a DO-204AC (DO-15) plastic package with two terminals. Key electrical characteristics include a non-repetitive peak forward surge current of 50 A, a maximum forward voltage drop of 1.4 V at rated current, and a low leakage current of 5.0 μA. The junction temperature range extends from -65 °C to 175 °C.

Feature Summary

• General-purpose rectification capability for standard power supply circuits
• High forward surge current handling for transient protection
• Low leakage current for improved efficiency in reverse bias

Applications

• General purpose rectification in power supplies
• Freewheeling diode applications in converters
• Inverter circuit protection

Procurement Notes

Verify the specific manufacturer source, as the 1N5398 designation is historically associated with General Electric and Vishay. Confirm if the onsemi listing refers to a direct equivalent or a legacy part number mapping. Check datasheet revision dates and RoHS compliance status, as older versions may not meet current environmental standards. Ensure the package type matches the required DO-204AC specification for your design.

Selection Notes

Select this component when a robust 1.5 A rectifier with high voltage blocking capability is required. The 800 V rating provides sufficient margin for standard mains rectification. Consider the thermal management requirements given the 175 °C junction limit. Verify that the plastic epoxy body meets the flammability ratings needed for your enclosure specifications.

Part Context

The 1N5398 belongs to the standard 1N53xx series of glass-passivated or plastic rectifiers. This series is widely used in industrial and consumer electronics for basic AC rectification. While originally defined by GE, multiple manufacturers produce equivalents. The onsemi variant maintains the core electrical specifications of the industry-standard JEDEC outline.

Replacement Considerations

Direct substitutes include Vishay 1N5398GP/91-E3 and 1N5398GP/71-E3, which offer identical electrical ratings and DO-15 packaging. Other compatible replacements within the 1N539x series should be verified for pinout compatibility and thermal performance.