1N5334B

Single Zener Diodes Overview

The Microsemi Corporation 1N5334B is a JEDEC registered silicon Zener diode with a nominal voltage of 3.6 V and a maximum power dissipation of 5.0 W at 25 °C. It features a ±5% tolerance, indicated by the B suffix, and operates within a temperature range of -65 °C to +150 °C. The device utilizes an axial-lead T-18 package with a void-free transfer molded thermosetting epoxy body. 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 exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for versatile installation
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

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 part number suffix to confirm tolerance and screening level. Confirm RoHS compliance status as standard versions may contain lead. Check manufacturer documentation for military equivalent prefixes like MQ, MX, or MV if required. Ensure adequate heat sinking is planned due to the 5-watt power rating. Verify moisture classification Level 1 requirements during storage and handling.

Single Zener Diodes Selection Notes

Select this component when a precise 3.6 V reference is needed with high power handling capabilities. Consider the thermal resistance of 25 °C/W junction-to-lead for circuit layout. Evaluate the need for tight tolerances, as other suffixes offer different percentage variances. Assess the operating environment temperature to ensure it falls within the specified -65 °C to +150 °C range.

Single Zener Diodes Part Context

This device belongs to the 1N5333B through 1N5388B series of 5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3 V to 200 V. These plastic encapsulated components are designed for applications requiring robust voltage regulation and high current operation with appropriate thermal management.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available in the SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B series. RoHS compliant versions can be identified by adding the e3 suffix to the base part number.