1N6340

Overview

The Microchip Technology 1N6340 is a military-qualified Zener voltage regulator diode designed for high-reliability applications. It features a 47V nominal Zener voltage with a standard ±5% tolerance and operates within a junction temperature range of -65°C to +175°C. The device utilizes a voidless hermetically sealed glass package (DO-35) with internal metallurgical bonds, ensuring robust construction. It supports steady-state power dissipation up to 0.5W at a lead temperature of 75°C.

Feature Summary

• Hermetically sealed voidless-glass construction with internal metallurgical bonding
• Military qualification per MIL-PRF-19500/533 standards
• Inherently radiation hard design
• Non-sensitive to electrostatic discharge

Applications

• High-reliability aerospace systems
• Defense electronics requiring failure intolerance
• Harsh environment voltage regulation
• Radiation-hardened circuit protection

Procurement Notes

Verify the specific reliability level required, as the series offers JAN, JANTX, JANTXV, and JANS options. Confirm RoHS compliance status, noting that compliant versions are available only in commercial grades. Ensure the ordering suffix matches the desired voltage tolerance and packaging configuration before finalizing procurement.

Selection Notes

Select this component when a 47V reference is needed in a DO-35 axial leaded package. Consider the thermal resistance values for derating calculations based on lead or ambient conditions. Verify if tighter voltage tolerances are necessary, as 1% and 2% options exist within the broader series nomenclature.

Part Context

This part belongs to the 1N6309 through 1N6355D series of 0.5-watt Zener diodes. The series provides an extensive selection of voltages from 2.4V to 200V. It serves as a JEDEC registered industry-standard component widely recognized for its durability and consistent performance in critical electronic circuits.

Replacement Considerations

JAN1N6340, JANTX1N6340, JANTXV1N6340, JANS1N6340