1N4702 (DO35)

Single Zener Diodes Overview

The Microsemi Corporation 1N4702 is a silicon Zener diode housed in a hermetically sealed glass DO-35 (DO-204AH) axial-leaded package. It provides a nominal Zener voltage of 15V with a maximum power dissipation of 0.5W at 50°C. The device features metallurgically bonded construction and double slug type design, ensuring reliability under harsh conditions. Operating temperatures range from -65°C to +175°C, supporting high-temperature applications requiring stable voltage regulation.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental protection
• Metallurgically bonded internal structure for enhanced durability
• Double slug type design for improved thermal performance

Single Zener Diodes Applications

• Voltage regulation in high-reliability circuits
• Temperature compensated reference diodes
• Harsh environment electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix letter on the part number to confirm tolerance levels and screening requirements. Confirm RoHS compliance status as standard versions may not be compliant. Ensure the DO-35 package matches the PCB footprint. Check for military screening prefixes if required by the application specification.

Single Zener Diodes Selection Notes

Select this component when a 15V Zener voltage is required in a compact axial package. Consider the 0.5W power rating and derating characteristics above 50°C. Evaluate the operating temperature range against system constraints. Verify that the hermetic seal meets the environmental standards of the target application.

Single Zener Diodes Part Context

This component belongs to the 1N4678 series of 500mW Zener diodes manufactured by Microsemi. The series covers a wide voltage range using standardized JEDEC numbering. These devices are designed for general-purpose voltage regulation where size and reliability are critical factors in the circuit design.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N4702 variants in DO-35 packages. Verify electrical parameters such as Zener voltage tolerance and leakage current before substitution. Ensure the replacement maintains the same hermetic sealing and metallurgical bond construction.