1N5334B/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5334B/TR8 is a silicon unidirectional Zener diode with a nominal voltage of 3.6 V and a maximum power dissipation of 5 W at 25°C. It features a ±5% tolerance, indicated by the B suffix, and utilizes an axial-lead T-18 package. The device operates within a temperature range of -65°C to +150°C and includes a TR suffix for tape and reel packaging. Electrical characteristics include a test current of 350 mA, a maximum dynamic impedance of 2.5 ohms, and a maximum reverse leakage current of 150 µA at 1.0 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for secure installation
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Protection against voltage spikes and transients
• Reference voltage sources in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific ordering suffixes required for your application, as the TR suffix indicates tape and reel packaging while other prefixes may denote military screening levels. Confirm that the component meets RoHS compliance requirements if necessary, which is indicated by the e3 suffix in related part numbers. Ensure the procurement documentation matches the exact JEDEC registered series specifications provided by Microsemi.

Single Zener Diodes Selection Notes

Select this component when a 3.6 V Zener voltage with 5 W power handling is required. The ±5% tolerance suits applications needing standard precision. Consider the thermal resistance of 25°C/W junction to lead for heat sinking needs. Verify that the axial-lead T-18 package fits the board layout constraints and that the operating temperature range covers the environmental conditions.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series provides a wide selection of voltages from 3.3 V to 200 V. The 1N5334B specifically addresses lower voltage regulation needs within this high-power category, offering robust performance in a plastic encapsulated axial-lead case suitable for general-purpose industrial and commercial electronics.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5334 or SMBG5334. Military screening options exist with MQ, MX, or MV prefixes. Direct pin-to-pin replacements must match the 5 W power rating and 3.6 V Zener voltage specifications.