1N4717

Overview

The Microchip Technology 1N4717 is a single Zener diode voltage regulator designed for through-hole mounting in the DO-204AA (DO-7) axial package. It provides a nominal Zener voltage of 39 V with a standard tolerance of ±5%. The device dissipates up to 500 mW and operates within a temperature range of -65°C to +175°C. Key electrical parameters include a maximum reverse leakage current of 10 nA, a test current of 50 µA, and a forward voltage of 1.5 V at 100 mA forward current.

Feature Summary

• Provides stable voltage regulation using a single Zener junction configuration.
• Features internal metallurgical bonding between the die and metal slugs for enhanced structural reliability.
• Supports operation across an extended industrial temperature range suitable for harsh environments.

Applications

• Voltage reference circuits requiring precise potential levels.
• Overvoltage protection stages in electronic systems.
• General-purpose voltage regulation in power supply designs.

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package type matches DO-204AA requirements. Ensure operating conditions remain within specified thermal and electrical limits. Request relevant quality documentation if required for specific industry standards.

Selection Notes

Select this component when a 39 V regulation point is required in a through-hole design. Consider the 500 mW power dissipation limit and ±5% voltage tolerance during circuit planning. Verify that the axial lead form factor fits the target PCB layout constraints.

Part Context

This part belongs to the 1N47xx series of 500 mW Zener diodes manufactured by Microchip Technology. These components are widely used as fundamental voltage references and regulators in discrete semiconductor applications. The series offers various voltage options within a standardized axial package format.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4717 equivalents. Verify that substitute parts match the 39 V Zener voltage, 500 mW power rating, and DO-204AA package dimensions to ensure mechanical and electrical compatibility.