1N5268A/TR

Single Zener Diodes Overview

The Microchip Technology 1N5268A/TR is a silicon Zener diode with an 82V nominal breakdown voltage and ±10% tolerance. It operates in the DO-35 (DO-204AH) glass axial-lead package, rated for 0.5W power dissipation at 25°C. The device features a maximum reverse current of 59μA at 62V and a dynamic impedance of 330Ω at 0.25mA. It supports a temperature range from -65°C to +175°C and includes a tape-and-reel option indicated by the TR suffix.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction
• Wide operating temperature capability up to 175°C
• ESD non-sensitive design per MIL-STD-750 Method 1020
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against the datasheet to ensure correct tolerance and packaging. Confirm RoHS compliance status if required, as standard versions may differ from e3 variants. Check manufacturer documentation for military screening prefixes if applicable. Ensure the TR suffix matches the reel specifications needed for assembly processes.

Single Zener Diodes Selection Notes

Select this component when a stable 82V reference is required in high-temperature environments. The DO-35 package suits through-hole mounting applications. Consider the ±10% tolerance for general regulation tasks. Evaluate thermal derating curves for power dissipation limits above 25°C ambient conditions.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5W Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers voltages from 2.4V to 200V. The 1N5268 variant specifically provides the 82V breakdown point within this extensive lineup of glass axial-leaded regulators.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N5268 without the TR suffix for loose components. Surface mount equivalents are available in the MLL5268 MELF package. Verify pinout compatibility and thermal characteristics when substituting.