1N5338E3/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5338E3/TR12 is a JEDEC registered silicon Zener diode with a nominal voltage of 5.1 V and a maximum power dissipation of 5.0 W at 25 °C. It features a T-18 axial leaded plastic package, RoHS compliance (e3 suffix), and tape-and-reel packaging (TR12 suffix). The device provides ±5% voltage tolerance, operates within -65 °C to +150 °C, and includes a maximum dynamic impedance of 1.5 Ω at a test current of 240 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across broad operating currents and temperature ranges
• Withstands high surge stresses and exhibits 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 without requiring dry pack storage

Single Zener Diodes Applications

• Voltage regulation over wide operating current and temperature ranges
• High surge stress applications requiring robust protection
• General purpose DC voltage reference circuits

Single Zener Diodes Procurement Notes

Verify the exact part number against official Microsemi documentation to confirm the specific suffixes. Ensure the e3 designation matches RoHS requirements and TR12 indicates tape-and-reel packaging. Confirm that the component meets the required moisture sensitivity level and thermal ratings for your specific application environment before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V Zener voltage with 5 W power handling is required. The T-18 axial package suits through-hole mounting. Verify that the ±5% tolerance aligns with circuit precision needs. Consider the low thermal resistance design if operating near maximum DC currents, ensuring adequate heat sinking is provided for optimal performance.

Single Zener Diodes Part Context

This device belongs to the 1N5333-5388B series of 5.0 watt Zener diodes. The series offers a wide selection from 3.3 V to 200 V with various tolerances identified by suffix letters. The e3 suffix denotes RoHS compliance, while the TR12 suffix specifies tape-and-reel packaging for automated assembly processes.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. Military screening options exist with MQ, MX, or MV prefixes. Verify pinout compatibility and thermal characteristics when substituting.