1N5281BE3

Single Zener Diodes Overview

The Microchip Technology 1N5281BE3 is a Zener diode with a nominal voltage of 200V and a power dissipation rating of 0.5W at 25°C. It features a hermetically sealed glass DO-35 (DO-204AH) axial-lead package. The device operates within a temperature range of -65°C to +175°C. Electrical characteristics include a maximum reverse current of 10μA at 144V, a zener impedance of 7000 Ohms at 0.25mA, and a voltage temperature coefficient of +0.110%/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction
• Inherently radiation hard per MicroNote 050
• Flexible mounting terminals for through-hole applications
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current ranges
• Temperature compensation circuits
• Reference voltage sources in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'B' indicates a standard 5% tolerance and 'e3' confirms RoHS compliance. Confirm that the component utilizes tin-lead or annealed matte-tin plating as specified by MIL-STD-750 method 2026. Ensure procurement matches the exact JEDEC registered type number for guaranteed parameter limits.

Single Zener Diodes Selection Notes

Select this component when a high-voltage Zener reference is required in an axial-lead package. The 200V breakdown voltage suits applications needing precise regulation at higher potentials. Consider the low capacitance and radiation hardness for specialized environments where signal integrity and durability are critical.

Single Zener Diodes Part Context

This part belongs to the popular 1N5221 thru 1N5281B series of 0.5 watt Zener Voltage Regulators. The series provides a selection from 2.4 to 200 volts. The 1N5281B represents the highest voltage option in this specific glass axial-leaded lineup, offering tight tolerances identified by the B suffix.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as MLL5281B in the DO-213AA MELF style package. Other screening levels such as JAN, JANTX, JANTXV, and JANS are available by adding MQ, MX, MV, or MSP prefixes respectively.