JANS1N4099-1/TR

Single Zener Diodes Overview

The JANS1N4099-1/TR is a Zener diode manufactured by Microchip Technology, designed for high-reliability applications. It features a nominal Zener voltage of 6.8 V with a tolerance of ±5%. The device operates in the DO-35 (DO-204AH) axial-leaded glass package and supports through-hole mounting. Key electrical parameters include a maximum power dissipation of 500 mW, a Zener impedance of 200 Ohms, and a maximum reverse leakage current of 1 µA at 5.2 V. It functions within a temperature range of -65°C to +175°C junction temperature.

Single Zener Diodes Feature Summary

• Qualified per MIL-PRF-19500/435 for JANS level high reliability applications
• Constructed with an internal metallurgical bond for enhanced durability
• JEDEC registered under the 1N4099 series designation

Single Zener Diodes Applications

• High-reliability aerospace systems
• Military electronic circuits
• Precision voltage regulation in harsh environments

Single Zener Diodes Procurement Notes

Verify that the specific suffix /TR indicates tape-and-reel packaging if required for automated assembly, as standard JANS parts are often supplied individually. Confirm RoHS status, as military-grade components may not be compliant. Ensure the supplier provides full traceability documentation consistent with JANS qualification requirements. Cross-reference the datasheet for any recent manufacturing changes or PCNs affecting this specific reel configuration.

Single Zener Diodes Selection Notes

Select this component when a stable 6.8 V reference is needed in extreme thermal conditions up to 175°C. The DO-35 package suits space-constrained through-hole designs requiring robust mechanical bonding. Consider the 200 Ohm impedance for noise-sensitive low-current applications. Verify compatibility with existing circuit layouts for axial leads before integration into high-vibration platforms.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mW metallurgically bonded glass Zener diodes. These devices are available in various qualified levels including JAN, JANTX, JANTXV, and JANS. The JANS level represents the highest reliability tier within this family, intended for critical mission-critical electronics where failure is not an option.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other JANS-level Zener diodes from the same series with identical voltage ratings, such as the JANS1N4099-1 without the reel suffix. Commercial equivalents like the 1N4099-1 exist but lack the rigorous MIL-PRF-19500/435 qualification. Ensure any replacement maintains the DO-35 footprint and metallurgical bond construction.