1N4105-1

Single Zener Diodes Overview

The Microchip Technology 1N4105-1 is a 500 mW Zener voltage regulator featuring an 11 V nominal breakdown voltage with a standard ±5% tolerance. It utilizes a hermetically sealed axial-lead glass DO-35 (DO-204AH) package and incorporates an internal metallurgical bond for structural integrity. The device operates within a junction temperature range of -65°C to +175°C, maintaining a maximum reverse leakage current of 8.5 µA at the specified test current of 250 µA.

Single Zener Diodes Feature Summary

• Internal metallurgical bond construction ensures robust mechanical stability.
• Hermetically sealed glass DO-35 package provides environmental protection.
• Qualified per MIL-PRF-19500/435 standards for high reliability applications.

Single Zener Diodes Applications

• Voltage regulation in military-grade electronic systems
• High-reliability circuit protection requiring radiation hardness
• Precision reference voltage generation in harsh environments

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required reliability level, as JAN, JANTX, JANTXV, and JANS designations indicate specific qualification tiers under MIL-PRF-19500/435. Confirm RoHS compliance status if applicable, noting that commercial versions may differ from qualified levels. Ensure the package type corresponds to the intended mounting method before procurement.

Single Zener Diodes Selection Notes

Select this component when a stable 11 V reference is required in axial-lead configurations. Consider the low noise density characteristics for sensitive analog circuits. Evaluate the power derating requirements against the expected ambient temperature to ensure operation remains within the 500 mW dissipation limit. Verify that the ±5% voltage tolerance meets the system's precision specifications.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of metallurgically bonded glass Zener diodes. These devices are designed for demanding environments where long-term stability and resistance to physical stress are critical. The series offers a wide range of voltages from 1.8 V to 100 V, all sharing similar construction techniques and qualification standards.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 1N4105 variants from different manufacturers that meet the same JEDEC registration and electrical specifications. Ensure any replacement maintains the DO-35 package dimensions and hermetic sealing capabilities to preserve the original design's reliability profile.