1N5281A/TR

Single Zener Diodes Overview

The Microchip Technology 1N5281A/TR is a 0.5-watt Zener diode with a nominal voltage of 200V and a ±10% tolerance, housed in a DO-35 glass axial package. It operates within a temperature range of -65°C to +175°C and features hermetically sealed construction. The device includes a tape-and-reel option for automated assembly.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction
• Regulates voltage across broad operating current and temperature ranges
• Inherently radiation hard per MicroNote 050
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging per EIA-296 standards. Confirm RoHS compliance status by checking for the 'e3' suffix, as standard versions may differ. Ensure the manufacturer prefix matches Microchip Technology specifications for the requested screening level.

Single Zener Diodes Selection Notes

Select this component when a 200V breakdown voltage with ±10% tolerance is required. Consider the DO-35 package for through-hole mounting. Evaluate thermal derating requirements if ambient temperatures exceed 50°C or if board-mounted power dissipation limits apply.

Single Zener Diodes Part Context

This part belongs to the 1N5221 thru 1N5281B series of 0.5-watt Zener Voltage Regulators. The series provides a selection from 2.4 to 200 volts in standard tolerances. It serves as a JEDEC registered equivalent to popular historical Zener diodes.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N5281B (±5% tolerance) or 1N5281 (±20% tolerance). Surface mount equivalents are available in the MLL5281B series using the DO-213AA MELF package.