1N4707/TR

Overview

The Microchip Technology 1N4707/TR is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 20 V with a 5% tolerance and operates within a power dissipation rating of 500 mW. The device utilizes a DO-35 axial through-hole package, measuring 2.29 mm in diameter. It supports an extended operating temperature range from -65 °C to +175 °C. Electrical characteristics include a maximum reverse leakage current of 50 nA and a forward current capacity of 200 mA. The component is supplied in a reel packaging format.

Feature Summary

• Provides stable voltage regulation using a single silicon Zener junction
• Capable of operation across a wide industrial temperature range up to 175 °C
• Constructed in a glass-passivated axial leaded package for through-hole mounting

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks

Procurement Notes

Verify the specific manufacturer part number against official Microchip Technology documentation to confirm electrical parameters and package details. Ensure compatibility with the intended circuit design regarding power dissipation and thermal management. Confirm that the reel packaging format aligns with automated assembly requirements or manual handling procedures. Cross-reference specifications with the latest datasheet to validate performance under expected operating conditions.

Selection Notes

Select this component when a 20 V Zener voltage with 5% tolerance is required for through-hole designs. Consider the 500 mW power dissipation limit and the -65 °C to +175 °C operating range for environmental suitability. Evaluate the DO-35 package dimensions for board space constraints. Compare leakage current and impedance characteristics against alternative devices if precise regulation or low noise is critical for the application.

Part Context

This component belongs to the standard Zener diode category manufactured by Microchip Technology. It is part of a broader series of voltage regulator diodes available in various breakdown voltages and packages. The 1N4707 designation identifies the specific 20 V variant within this lineup, distinguished by its axial glass encapsulation and through-hole configuration suitable for general electronic assemblies.

Replacement Considerations

Consult official Microchip Technology substitution guides for verified equivalent part numbers. Do not assume functional interchangeability based solely on similar voltage ratings without verifying package, power, and tolerance specifications.