1N5077SM

Single Zener Diodes Overview

The 1N5077SM is a single Zener diode manufactured by Microchip Technology, designed for surface mount applications. It features a nominal Zener voltage of 30 V with a tolerance of ±5% and a maximum power dissipation of 3 W. The component utilizes an SQ-MELF package, which provides a microminiature form factor suitable for space-constrained designs. Constructed from silicon, the device operates within a temperature range of -65 °C to +175 °C. Key structural characteristics include a voidless hermetically sealed glass package and triple layer passivation, ensuring reliability in demanding environments.

Single Zener Diodes Feature Summary

• Microminiature SQ-MELF surface mount package design
• Voidless hermetically sealed glass construction
• Triple layer passivation for enhanced protection
• Metallurgically bonded internal structure

Single Zener Diodes Applications

• Voltage regulation circuits requiring high reliability
• Space-constrained electronic assemblies
• Harsh environment industrial electronics
• Military and aerospace power systems

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as the 1N5077SM designation has been associated with multiple entities including Microchip Technology and SSDI. Confirm that the received component matches the SQ-MELF package style and 30V/3W specifications. Ensure documentation confirms the hermetically sealed glass construction and triple layer passivation features required for your application's environmental standards.

Single Zener Diodes Selection Notes

Select this component when a robust, surface-mount Zener diode is needed for 30V regulation. The SQ-MELF package offers a compact alternative to axial leads while maintaining high thermal stability up to 175°C. Consider the hermetic seal if moisture resistance or long-term stability in extreme temperatures is critical. Verify pin compatibility and footprint requirements against the SQ-MELF outline before integration.

Single Zener Diodes Part Context

This part belongs to the 1N5077 series of single Zener diodes, which includes variants such as 1N5077 and 1N5077SM. The 'SM' suffix typically denotes the surface mount SQ-MELF package variant, distinguishing it from through-hole axial versions like the standard 1N5077. These devices are engineered for high-reliability applications where small size and hermetic sealing are paramount.

Single Zener Diodes Replacement Considerations

Direct substitutes may include other 30V 3W Zener diodes in SQ-MELF packages from compatible manufacturers. Verify electrical parameters such as Zener voltage tolerance (±5%) and maximum power dissipation (3W). Ensure the replacement maintains the same hermetically sealed glass construction and operating temperature range (-65°C to +175°C) for equivalent performance.