1N5099SM

Single Zener Diodes Overview

The Microchip Technology 1N5099SM is a single Zener diode rated for 3 W of continuous power dissipation. It provides a nominal Zener voltage of 140 V with a tolerance of ±5%. The device utilizes silicon as the semiconductor material and is housed in a surface-mount SQ-MELF package. It operates within a temperature range of -65 °C to +175 °C, featuring hermetic sealing in glass.

Single Zener Diodes Feature Summary

• Hermetically sealed construction in glass for environmental protection
• Surface mount SQ-MELF packaging for automated assembly
• High thermal stability supporting operation up to 175 °C

Single Zener Diodes Applications

• Voltage regulation in high-reliability electronic circuits
• Overvoltage protection in aerospace systems
• Reference voltage generation in precision instrumentation

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as SSDI also produces equivalent part numbers like SZN5099ASMSTX. Confirm that the SQ-MELF package matches your PCB footprint requirements. Ensure the ±5% tolerance aligns with your circuit design specifications before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed Zener diode is required for high-temperature environments. The SQ-MELF package offers a compact form factor suitable for space-constrained designs. Consider the 140 V rating and 3 W power handling capabilities to ensure adequate margin for your specific application loads.

Single Zener Diodes Part Context

This component belongs to the standard 1N5099 series of Zener diodes. It serves as a surface-mount replacement for axial leaded versions, maintaining similar electrical characteristics while adapting to modern PCB assembly techniques. The SM suffix denotes the specific surface-mount variant.

Single Zener Diodes Replacement Considerations

The SZN5099ASMSTX from SSDI is a documented replacement offering identical 140 V and 3 W ratings. Verify pin compatibility and package dimensions between the Microchip and SSDI variants before substitution.