1N3996RA

Single Zener Diodes Overview

The Microchip Technology 1N3996RA is a 10W Zener diode with a nominal regulation voltage of 5.1V and a maximum test current of 490mA. It features a reverse impedance of 1.1 ohms and is designed for stud-mount installation. The device operates within a temperature range of -65°C to +175°C and has a maximum reverse leakage current of 10µA.

Single Zener Diodes Feature Summary

• Hermetically sealed welded construction
• Internal solder bond design
• Military qualification per MIL-PRF-19500/124

Single Zener Diodes Applications

• High-reliability military systems
• Spacecraft power regulation
• Harsh environment voltage reference circuits

Single Zener Diodes Procurement Notes

Verify the specific revision level and lot traceability requirements against MIL-PRF-19500/124 standards before procurement. Confirm that the JANTX or JANTXV grade matches the project's radiation tolerance and reliability specifications. Ensure stud-mount thermal interface compatibility with the intended heatsink assembly.

Single Zener Diodes Selection Notes

Select this component when high power dissipation of 10W is required in a ruggedized package. The stud-mount configuration facilitates direct thermal coupling to chassis grounds. Verify that the 5.1V regulation point aligns with the circuit's biasing needs and that the 490mA test current capability supports the expected load variations.

Single Zener Diodes Part Context

This part belongs to the 1N3993A through 1N3998A series of 10W Zener diodes manufactured by Microchip Technology. These devices are available in JAN, JANTX, and JANTXV qualification levels. The RA suffix typically denotes a specific polarity or packaging variant within the military-grade lineup.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N3996 equivalents only if they meet the same MIL-PRF-19500/124 qualification. Verify mechanical stud dimensions and terminal plating specifications to ensure physical interchangeability without modifying the mounting hardware.