1N5231BDO35TR

Single Zener Diodes Overview

The Microsemi Corporation 1N5231BDO35TR is a Zener diode with a nominal voltage of 5.1 V and a maximum power dissipation of 0.5 W at 25°C. It features a hermetically sealed glass DO-35 (DO-204AH) axial-lead package. The device provides a standard voltage tolerance of ±5% for the B suffix. Electrical characteristics include a test current of 20 mA, a maximum reverse current of 50 µA at 4.7 V, and a maximum Zener impedance of 17 Ω at 1 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction
• Regulates voltage over a broad operating current and temperature range
• Minimal capacitance characteristics
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• General purpose applications requiring stable reference voltages
• Circuit protection against voltage transients

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required specifications. Confirm RoHS compliance status by checking for the e3 suffix if lead-free material is mandatory. Ensure the TR suffix is present to confirm tape and reel packaging rather than bulk shipping. Cross-reference the manufacturer prefix and screening level requirements against specific project standards before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V Zener voltage with ±5% tolerance is required. Consider the DO-35 package size for through-hole mounting constraints. Evaluate the thermal resistance and derating curves if operation exceeds ambient temperatures. Verify that the low capacitance meets signal integrity requirements for high-speed or sensitive analog applications.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 watt Zener Voltage Regulators manufactured by Microsemi Scottsdale Division. The series offers a wide selection of voltages from 2.4 to 200 volts. Variants are available with different tolerances and military screening levels using specific prefixes and suffixes.

Single Zener Diodes Replacement Considerations

Consult the manufacturer's datasheet for surface mount equivalents like MLL5221 to MLL5281B in the DO-213AA MELF style package. Other manufacturers may offer compatible parts within the same JEDEC type number family.