1N5343CE3/TR8

Single Zener Diodes Overview

The Microchip Technology 1N5343CE3/TR8 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, manufactured by the Microsemi Scottsdale Division. It provides voltage regulation at a nominal Zener voltage of 7.5 volts with a tight tolerance of plus or minus 2 percent, indicated by the C suffix. The device operates within an ambient temperature range of -65°C to +150°C and features a T-18 axial lead package. Electrical characteristics include a maximum dynamic impedance of 1.5 ohms and a maximum reverse current of 10 microamperes.

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 changes in voltage versus current
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection systems
• Power supply regulation

Single Zener Diodes Procurement Notes

Verify that the component matches the specific Microsemi part number 1N5343CE3/TR8. Confirm the presence of the e3 suffix indicating RoHS compliance and the TR8 suffix denoting tape and reel packaging. Ensure the manufacturer designation aligns with the original Microsemi Scottsdale Division specifications before procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 7.5-volt regulation point is required with a strict plus or minus 2 percent tolerance. The 5-watt power dissipation rating supports high-current operation provided adequate heat sinking is utilized. The wide operating temperature range makes it suitable for demanding industrial environments.

Single Zener Diodes Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages ranging from 3.3 volts to 200 volts. Different suffix letters identify specific voltage tolerances, with the C suffix designating the tighter plus or minus 2 percent specification found in this model.

Single Zener Diodes Replacement Considerations

Compatible equivalents include other 5-watt Zener diodes with a 7.5-volt rating and plus or minus 2 percent tolerance. Verify mechanical compatibility with the T-18 axial lead package and ensure thermal resistance characteristics match the application requirements.