1N5347C/TR8

Overview

The Microsemi Corporation 1N5347C/TR8 is a silicon Zener diode with a nominal voltage of 9.1V and a tight tolerance of ±2%. It operates in an axial-lead T-18 package, providing 5W power dissipation at 25°C. The device features unidirectional polarity, isolated case connection, and RoHS compliance. It withstands high surge stresses and offers minimal voltage change versus current across a broad operating range.

Feature Summary

• Provides precise voltage regulation within a ±2% tolerance band
• Withstands high surge currents without damage
• Exhibits minimal voltage variation relative to current changes
• Operates reliably across a wide temperature range

Applications

• Voltage reference circuits requiring stable DC levels
• Power supply overvoltage protection systems
• Precision regulator designs for industrial equipment

Procurement Notes

Verify the specific suffix configuration against the datasheet to confirm tolerance and compliance status. Ensure the ordering code matches the required lead plating and screening level. Confirm that the TR8 tape and reel packaging aligns with automated assembly requirements before finalizing procurement orders.

Selection Notes

Select this component when a 9.1V Zener voltage with ±2% accuracy is required. Consider the 5W power rating and thermal resistance characteristics for heat sinking needs. Verify compatibility with existing circuit impedance and surge current demands during the design phase.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series covers voltages from 3.3V to 200V with various tolerance options. The C suffix specifically denotes the tighter ±2% tolerance variant within this family.

Replacement Considerations

Equivalent parts include other 9.1V Zener diodes with ±2% tolerance and 5W power ratings. Verify pinout compatibility and thermal performance characteristics before substitution.