1N3997

Single Zener Diodes Overview

The Microchip Technology 1N3997 is a 5.6V Zener diode with a 5% tolerance, rated for 10W power dissipation. It utilizes silicon construction and features a DO-4 (DO-203AA) hermetically sealed metal-glass package. The device operates within a temperature range of -65°C to +175°C and supports military qualification grades including JAN, JANTX, and JANTXV per MIL-PRF-19500/124.

Single Zener Diodes Feature Summary

• Hermetically sealed welded construction for environmental protection
• Internal solder bond construction for mechanical stability
• Military qualification available in JAN, JANTX, and JANTXV grades

Single Zener Diodes Applications

• High-reliability voltage regulation circuits
• Harsh environment electronic systems
• Military and aerospace equipment

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., RAE3, RA) to confirm exact qualification grade and compliance status. Confirm package type and lead-free requirements against project specifications. Ensure the selected variant matches the required MIL-PRF-19500/124 level for intended operational reliability.

Single Zener Diodes Selection Notes

Select this component for applications requiring high power handling and robust physical sealing. Consider the operating temperature range and military qualification levels when designing for extreme conditions. Verify pin configuration and case connection details during integration.

Single Zener Diodes Part Context

Part of the 1N3993A through 1N3998A series of 10W Zener diodes offering regulation voltages from 3.9V to 200V. Manufactured by Microchip Technology, these devices are designed for demanding industrial and defense applications requiring stable voltage reference capabilities.

Single Zener Diodes Replacement Considerations

Consult factory for surface mount equivalents. Verify cross-reference availability for other manufacturers' 10W DO-4 Zener diodes with matching 5.6V regulation and military qualification standards.