1N5338BE3/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5338BE3/TR12 is a silicon Zener diode with a nominal voltage of 5.1 V and a maximum power dissipation of 5 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 a T-18 axial leaded package and includes an 'e3' suffix denoting RoHS compliance. Electrical characteristics include a maximum dynamic impedance of 1.5 Ω at a test current of 240 mA, a maximum reverse leakage current of 10 µA at 1.0 V, and a maximum regulator current of 930 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement equipment

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required specifications: 'B' indicates ±5% tolerance, 'e3' confirms RoHS compliance, and 'TR12' specifies tape and reel packaging. Confirm the manufacturer as Microsemi Corporation or its successor entity, Microchip Technology. Ensure the component meets the specified JEDEC registration standards and verify the absence of prohibited substances if environmental compliance is strictly required beyond the standard e3 designation.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V reference with ±5% precision is required in a 5 W axial package. The 'e3' suffix ensures compliance with restricted substance directives. Consider the thermal resistance of 25 °C/W junction-to-lead for heat sinking requirements. Verify that the T-18 package dimensions fit the target PCB layout and that the lead length accommodates the intended mounting style.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of JEDEC registered silicon Zener diodes. The series offers voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters. These plastic encapsulated devices are designed for high DC currents with adequate heat sinking and feature low thermal resistance. The series is available in military screening levels and surface mount equivalents.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. For military screening, prefixes MQ, MX, or MV can be added to part numbers for JAN, JANTX, and JANTXV levels respectively.