1N5343AE3/TR12

Single Zener Diodes Overview

The Microchip Technology 1N5343AE3/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 7.5 V with a ±10% tolerance, indicated by the 'A' suffix. 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 and a maximum reverse current of 10 µA. The component is RoHS compliant (e3 suffix) and available in tape and reel packaging (TR suffix).

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 regulation in power supply circuits
• Reference voltage sources in electronic systems
• Overvoltage protection components

Single Zener Diodes Procurement Notes

Verify the manufacturer origin, as the datasheet identifies Microsemi while the model prefix implies Microchip Technology. Confirm that the specific ordering suffixes correspond to the required RoHS compliance and tape-and-reel packaging format. Ensure the component matches the T-18 package dimensions and electrical parameters defined in the official specification document before procurement.

Single Zener Diodes Selection Notes

Select this component when a 7.5 V regulation point is required with a 5 W power dissipation capability. The ±10% tolerance suits applications where tighter precision is not critical. Consider the thermal resistance and derating curves if operating near the maximum junction temperature or in confined spaces without adequate heat sinking.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide voltage selection from 3.3 V to 200 V. Different suffix letters denote specific voltage tolerances, with 'A' indicating ±10%. The series is JEDEC registered and offers various screening options for military equivalents.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same series include 1N5343B, 1N5343BE3, and 1N5343B/TR12. These parts share identical electrical characteristics and mechanical dimensions but may differ in tolerance ('B' for ±5%) or packaging configuration.