1N5275BE3

Single Zener Diodes Overview

The Microchip Technology 1N5275BE3 is a 0.5-watt glass axial-lead Zener diode in a DO-35 package. It provides a nominal Zener voltage of 140 V with a standard 5% tolerance (B suffix). The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 10 µA at 100 V. Electrical characteristics include a test current of 0.90 mA, a maximum Zener impedance of 4500 Ohms at the test current, and a positive voltage temperature coefficient of +0.110 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for environmental stability
• Inherently radiation hard per MicroNote 050
• ESD nonsensitive per MIL-STD-750 Method 1020
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current ranges
• Reference voltage sources in electronic circuits
• Protection against voltage transients

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'e3' confirms RoHS compliance as specified in the datasheet. Confirm the B suffix indicates the required 5% voltage tolerance. Ensure the DO-35 package dimensions match the target PCB layout requirements. Check for any prefix identifiers if military screening levels are necessary for the specific application environment.

Single Zener Diodes Selection Notes

Select this component when a stable 140 V reference is needed in a through-hole design. The positive temperature coefficient must be accounted for in precision applications. Verify that the 0.5 W power dissipation rating meets the thermal requirements of the circuit under steady-state conditions. Consider the high Zener impedance if low dynamic resistance is critical for the load regulation performance.

Single Zener Diodes Part Context

This part belongs to the 1N5221 thru 1N5281B series of 0.5 watt Zener Voltage Regulators manufactured by Microsemi Scottsdale Division. The series offers a selection from 2.4 to 200 volts in standard 5% or 10% tolerances. These devices are JEDEC registered and available in various military screening levels with appropriate prefixes.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5275 variants meeting the same electrical specifications. Surface mount equivalents are available in the MLL5221 to MLL5281B series in the DO-213AA MELF style package.