1N5272A

Single Zener Diodes Overview

The Microchip Technology 1N5272A is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 110 V with a standard tolerance of ±10%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse leakage current of 80 µA at 94 V. Its electrical characteristics include a test current of 1.1 mA, a maximum Zener impedance of 750 Ω at 0.25 mA, and a positive voltage temperature coefficient of +0.11 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Hermetically sealed glass axial-lead construction ensures durability
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection in sensitive electronic systems
• Temperature compensated power supply designs

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' indicates the required ±10% tolerance level. Confirm that the standard DO-35 glass package meets the thermal and mechanical requirements of the target assembly. Ensure compatibility with the specified lead length for accurate thermal resistance calculations during integration.

Single Zener Diodes Selection Notes

Select this component when a 110 V breakdown voltage is required with moderate precision. Consider the positive temperature coefficient for thermal stability analysis. Evaluate the 0.5 W power dissipation limit against peak load conditions to ensure safe operation within the derating curve limits.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection from 2.4 to 200 volts. Variations in tolerance are identified by suffix letters, with 'A' denoting ±10% and 'B' denoting ±5%.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N5272B (±5% tolerance) or 1N5272C (±2% tolerance). Surface mount equivalents are available as MLL5272 in the DO-213AA MELF style package.