1N5344B/TR8

Single Zener Diodes Overview

The Microchip Technology 1N5344B/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 9.1V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 7.5µA at 6.25V and a dynamic impedance of 2.0Ω. The device utilizes a T-18 axial lead package and is supplied in tape and reel format.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for through-hole integration

Single Zener Diodes Applications

• Voltage regulation circuits requiring 5W power dissipation
• High surge stress environments
• Applications utilizing flexible axial-lead mounting

Single Zener Diodes Procurement Notes

Verify the specific suffix 'TR8' against official documentation to confirm tape and reel packaging compliance. Ensure the component meets RoHS requirements if applicable, as standard versions may differ from e3 variants. Confirm JEDEC registration status and thermal derating curves for your specific mounting conditions before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 9.1V Zener reference with 5W power handling is required. Consider the ±5% tolerance and 2.0Ω dynamic impedance for precision applications. Evaluate thermal resistance (25°C/W junction-to-lead) and ensure adequate heat sinking or FR4 PCB copper pad specifications are met for steady-state operation.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of JEDEC registered silicon Zener diodes. Manufactured by Microsemi's Scottsdale Division, these devices offer a wide selection of voltages from 3.3V to 200V. The series is characterized by void-free transfer molded epoxy bodies meeting UL94V-0 flammability ratings.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5344B variants. Verify that replacements match the 5W power rating, 9.1V Zener voltage, ±5% tolerance, and T-18 axial lead package dimensions.