1N5338E3/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5338E3/TR8 is a silicon Zener diode with a nominal voltage of 5.1 V and a tolerance of ±10%. It features a maximum power dissipation of 5 W at 25°C, operating within a temperature range of -65°C to +150°C. The device utilizes an axial-lead T-18 package and includes a tape-and-reel option indicated by the TR suffix. Electrical characteristics include a maximum dynamic impedance of 1.5 Ohms and a maximum reverse current of 1 µA at 1 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses while maintaining minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for versatile integration
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B without requiring dry pack storage

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Protection against voltage spikes and surges
• Reference voltage sources in measurement systems

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required specifications, as prefixes and suffixes denote specific screening levels, tolerances, or packaging formats. Confirm RoHS compliance status and lead material (tin-lead vs. matte-tin) based on project requirements. Check for availability of military equivalents if higher reliability standards are necessary. Ensure the tape-and-reel format aligns with automated assembly equipment capabilities.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V Zener reference with ±10% tolerance is required. Consider the 5 W power rating and thermal resistance values for heat sinking needs. Evaluate the T-18 axial package dimensions for PCB layout constraints. Compare dynamic impedance and leakage current specifications against circuit sensitivity requirements to ensure adequate performance under expected operating conditions.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N5333 through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters. The e3 suffix indicates RoHS compliance, while the TR suffix specifies tape-and-reel packaging. These devices are designed for applications requiring robust voltage regulation and high surge capability.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5338B or SMBG5338B. Verify pinout compatibility and thermal management differences when transitioning between axial and surface mount packages. Ensure voltage and tolerance specifications match exactly to maintain circuit functionality.