1N5343BE3/TR8

Single Zener Diodes Overview

The Microchip Technology 1N5343BE3/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333 to 1N5388B series. It provides voltage regulation with a nominal Zener voltage of 7.5 V and a standard tolerance of ±5%. The device operates within a 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 at a test current of 175 mA, a maximum reverse leakage current of 10 µA, and a maximum regulator current of 630 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for through-hole integration
• Constructed with a void-free transfer molded thermosetting epoxy body

Single Zener Diodes Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• Power supply protection against overvoltage conditions
• Reference voltage generation in electronic systems

Single Zener Diodes Procurement Notes

Verify that the component matches the specific 7.5 V Zener voltage and ±5% tolerance requirements. Confirm the presence of the e3 suffix indicates RoHS compliance and the TR8 suffix denotes tape and reel packaging. Ensure the supplier documentation aligns with the official Microsemi datasheet specifications for the 1N5333B thru 1N5388B series.

Single Zener Diodes Selection Notes

Select this component when a 5-watt power rating and a 7.5 V regulated output are required. Consider the T-18 package dimensions for board layout constraints. Evaluate thermal management needs based on the specified junction-to-lead thermal resistance and derating curves for continuous operation.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a wide selection of voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters. These devices are designed for applications requiring robust voltage regulation and high surge current handling capabilities.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same series include other 1N53xxB variants with different voltage ratings. Surface mount equivalents such as SMBJ5343 or SMBG5343 may be considered if footprint adaptation is feasible.