1N5268A

Single Zener Diodes Overview

The Microchip Technology 1N5268A is a 0.5 W glass axial-lead Zener diode in the DO-35 (DO-204AH) package. It provides an 82 V nominal Zener voltage with a ±10% tolerance, indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 59 μA at 65 V. Its dynamic impedance is specified as 2000 Ohms at a test current of 1.5 mA.

Single Zener Diodes Feature Summary

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

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection for sensitive electronic components
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status by checking for the 'e3' suffix on the part number, as standard versions may not meet current environmental regulations. Ensure proper handling procedures are followed during storage and installation to maintain device integrity.

Single Zener Diodes Selection Notes

Select this component when a precise 82 V regulation point is required with moderate tolerance. Consider the thermal resistance and power derating curves if operating near maximum ratings. Verify that the package dimensions fit the target PCB layout constraints before finalizing the design.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener diodes. The series covers a wide voltage range from 2.4 V to 200 V. The 1N5268A specifically targets the mid-to-high voltage segment of this lineup, offering a standardized solution for general-purpose regulation tasks.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5268A equivalents or variants with tighter tolerances such as the 1N5268B. Surface mount alternatives like the MLL5268A are available for space-constrained designs.