1N5939AG

Single Zener Diodes Overview

The Microsemi Corporation 1N5939AG is a 39V Zener diode with a 10% voltage tolerance, housed in a DO-41 glass axial package. It provides 1.5W steady-state power dissipation and operates within a -65°C to +175°C temperature range. The device features hermetic sealing, metallurgically enhanced internal contacts, and low thermal resistance. It is rated for non-sensitive ESD performance per MIL-STD-750 method 1020 and possesses inherent radiation hardness.

Single Zener Diodes Feature Summary

• Hermetically sealed glass body construction with tungsten slugs
• Metallurgically enhanced internal contact design for reliability
• Inherently radiation hard characteristics
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating current ranges
• High-reliability military equivalent screening applications
• Temperature-stable circuit protection

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' indicates a 10% tolerance level as defined in the part nomenclature. Confirm RoHS compliance status, as commercial versions may differ from standard specifications. Ensure ordering includes correct screening levels if required for high-reliability environments.

Single Zener Diodes Selection Notes

Select this component when a 39V breakdown voltage with 10% tolerance is required in an axial leaded format. The glass encapsulation offers superior thermal resistance compared to plastic equivalents. Consider the wide operating temperature range and radiation hardness for demanding environmental conditions.

Single Zener Diodes Part Context

This part belongs to the 1N5913BG through 1N5956BG series of 1.5-watt Zener diodes. The series covers voltages from 3.3V to 200V with various tolerance options. The 'G' suffix denotes the glass casing, while 'A' specifies the 10% tolerance band.

Single Zener Diodes Replacement Considerations

Equivalent parts include MX1N5939BUR-1ATR (MELF surface mount) and 1N5939DE3 (DO-41 glass). Verify that replacement packages match the required mounting style and electrical tolerances.