1N5343C/TR8

Single Zener Diodes Overview

The Microchip Technology 1N5343C/TR8 is a silicon 5.0-watt Zener diode with a nominal voltage of 7.5 volts and a tight tolerance of ±2%. It operates within a temperature range of -65°C to +150°C and features an axial-lead T-18 package. The device includes a maximum dynamic impedance of 1.5 ohms, a reverse current of 10 µA at 5.4V, and a maximum regulator current of 630 mA.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with ±2% tolerance for sensitive circuitry
• Handles high surge stresses and withstands significant power dissipation
• Features flexible axial-lead mounting terminals for through-hole integration

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Power supply protection against overvoltage conditions
• Clamping applications in electronic signal processing

Single Zener Diodes Procurement Notes

Verify the specific suffix 'TR8' indicates tape and reel packaging as per standard JEDEC registration practices. Confirm RoHS compliance status by checking for the 'e3' designation on the component body or official datasheet revision history. Ensure the supplier provides valid traceability documentation for this discontinued series.

Single Zener Diodes Selection Notes

Select this component when a 7.5-volt reference with tighter than standard tolerances is required. The 5-watt power rating allows operation at high currents with adequate heat sinking. Verify that the T-18 axial lead form factor fits the mechanical constraints of the target printed circuit board layout.

Single Zener Diodes Part Context

This part belongs to the 1N5333B through 1N5388B series of JEDEC registered silicon Zener diodes manufactured by Microsemi (now Microchip). The series covers voltages from 3.3V to 200V with various tolerance options identified by suffix letters such as B, C, and D.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5343B for standard 5% tolerance or the 1N5343D for 1% tolerance. Surface mount alternatives are available in the SMBJ5343 or SMBG5343 families.