JAN1N6338US

Single Zener Diodes Overview

The JAN1N6338US is a military-qualified Zener voltage regulator diode from the 1N6309US through 1N6355DUS series, manufactured by Microchip Technology. It features a B-SQ MELF surface-mount package with voidless hermetically sealed glass construction and internal metallurgical bonding. The device provides a nominal Zener voltage of 39 V at a test current of 3.2 mA, with a maximum dynamic impedance of 55 Ohms. It operates within a junction temperature range of -65°C to +175°C and supports a steady-state power dissipation of 0.5 W.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless-glass package with tungsten slugs for high-reliability environments
• Internal Category I metallurgical bonds ensuring robust structural integrity
• Qualified per MIL-PRF-19500/533 standards for critical applications
• Inherently radiation hard and non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• High-reliability aerospace systems where failure cannot be tolerated
• Military-grade electronic circuits requiring stable voltage regulation
• Radiation-hardened equipment operating in extreme thermal conditions

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required reliability level (JAN) and package type (B-SQ MELF). Confirm compliance with MIL-PRF-19500/533 specifications during acquisition. Ensure proper handling procedures are followed due to the hermetic sealing and metallurgical bond characteristics inherent to this component series.

Single Zener Diodes Selection Notes

Select this component when a surface-mount equivalent to the axial-leaded 1N6338 is required for space-constrained designs. Consider the 39 V nominal breakdown voltage and 0.5 W power rating against circuit requirements. Evaluate the need for military qualification levels versus commercial alternatives based on environmental stress factors.

Single Zener Diodes Part Context

This device belongs to the industry-recognized 1N6309 through 1N6355 series of 0.5 watt Zener voltage regulators. The series offers extensive selections ranging from 2.4 to 200 volts with standard and tight voltage tolerances. It serves as the surface-mount counterpart to traditional axial-leaded packages, maintaining identical electrical performance in a compact form factor.

Single Zener Diodes Replacement Considerations

Direct replacements include JANTX1N6338US, JANTXV1N6338US, and JANS1N6338US, which share the same electrical characteristics but offer different reliability tiers.