1N5267B

Single Zener Diodes Overview

The Microchip Technology 1N5267B is a 0.5-watt Zener voltage regulator housed in a hermetically sealed glass axial-lead DO-35 package. It provides a nominal Zener voltage of 75 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 100 µA at 76 V. Electrical characteristics include a test current of 1.7 mA, a maximum Zener impedance of 270 Ohms at the test current, and a voltage temperature coefficient of +0.098 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for environmental stability
• JEDEC registered part number ensuring standardized electrical parameters
• Flexible mounting terminals compatible with through-hole PCB assembly

Single Zener Diodes Applications

• Voltage regulation in broad operating current ranges
• Reference voltage generation in precision circuits
• Overvoltage protection in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'B' confirms the ±5% tolerance requirement for your design. Confirm that the DO-35 axial-lead package aligns with your board layout constraints. Ensure the manufacturer source is authorized to guarantee compliance with the JEDEC registration and RoHS status if applicable.

Single Zener Diodes Selection Notes

Select this component when a stable 75 V reference is required in a compact axial-lead form factor. Consider the positive temperature coefficient for thermal compensation needs. Evaluate the 500 mW power dissipation limit against your circuit's peak current requirements to ensure safe operation within the specified temperature range.

Single Zener Diodes Part Context

This device belongs to the widely used 1N5221 through 1N5281B series of 0.5-watt Zener diodes. The series covers a voltage selection from 2.4 to 200 volts. The 1N5267B specifically addresses applications requiring higher voltage regulation compared to lower-voltage variants in the same family.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5267B devices meeting JEDEC specifications. Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package.