1N5338/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5338/TR12 is a JEDEC registered silicon 5.0-watt Zener diode in the 1N5333-5388B series, housed in a T-18 axial leaded plastic package with a TR tape and reel suffix. It provides voltage regulation at a nominal Zener voltage of 5.1 V with a ±10% tolerance. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 1.5 ohms at a test current of 240 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across broad operating current and temperature ranges
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for versatile installation

Single Zener Diodes Applications

• Voltage regulation over wide operating current and temperature ranges
• High specified maximum current applications requiring adequate heat sinking
• Surge stress protection circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm tolerance levels and packaging options. Confirm RoHS compliance status as standard versions may differ from e3 variants. Ensure thermal management requirements align with the specified junction-to-lead and junction-to-ambient thermal resistance values for reliable operation.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V reference with ±10% tolerance is required in an axial leaded format. Consider the T-18 package dimensions and thermal derating curves for power dissipation limits. Evaluate the need for military screening prefixes if environmental ruggedness is necessary.

Single Zener Diodes Part Context

This part belongs to the Microsemi 1N5333 through 1N5388B series of 5-watt Zener diodes. The series covers a voltage selection from 3.3 V to 200 V with various tolerance suffixes. Surface mount equivalents are available in SMBJ and SMBG packages for designs requiring different form factors.

Single Zener Diodes Replacement Considerations

Surface mount equivalents include SMBJ5338B or SMBG5338B. Verify pinout compatibility and thermal performance when transitioning between axial and surface mount technologies.