1N4099-1

Single Zener Diodes Overview

The Microchip Technology 1N4099-1 is a 500 mW metallurgically bonded glass Zener diode in an axial-lead DO-35 package. It provides a nominal Zener voltage of 6.8 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -65°C to +175°C and features a maximum reverse leakage current of 1 µA at 5.2 V. Electrical characteristics include a test current of 250 µA, a dynamic impedance of 200 Ohms, and a noise density of 40 µV/√Hz.

Single Zener Diodes Feature Summary

• Hermetically sealed construction using internal metallurgical bonding for high reliability.
• Qualified per MIL-PRF-19500/435 standards for JAN, JANTX, JANTXV, and JANS levels.
• Inherently radiation hard as described in Microsemi MicroNote 050.
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• Voltage regulation over broad ranges of current and temperature.
• High reliability applications requiring military qualification levels.
• Radiation-hardened circuit designs.

Single Zener Diodes Procurement Notes

Verify the specific reliability level required, such as JAN, JANTX, JANTXV, or JANS, as these designations indicate different qualification standards under MIL-PRF-19500/435. Confirm RoHS compliance status, noting that compliant versions are available only on commercial grades. Ensure the ordering suffix matches the desired tolerance and packaging configuration before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 6.8 V reference is needed in a through-hole DO-35 package. Consider the positive temperature coefficient of +0.060 %/°C for thermal stability requirements. Evaluate the 200 Ohm dynamic impedance against circuit sensitivity needs. Verify that the 500 mW power dissipation rating aligns with the expected operating conditions and derating curves.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mZener voltage regulators. These devices share common mechanical and electrical characteristics, differing primarily in their nominal breakdown voltages which range from 1.8 V to 100 V. They are JEDEC registered and utilize the same axial-lead glass package structure.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers: JANS1N4099-1, JANTX1N4099-1, JAN1N4099-1.