1N5348B/TR12

Overview

The Microchip Technology 1N5348B/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 11 V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 5.0 µA at 8.0 V and a dynamic impedance of 2.5 Ω at a test current of 125 mA. The device utilizes an axial-lead T-18 package and is supplied in tape and reel format.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for through-hole integration

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Procurement Notes

Verify the component's JEDEC registration status and confirm that the specific suffix matches the required tolerance and packaging configuration. Ensure that thermal management strategies align with the specified junction-to-lead thermal resistance values during procurement planning.

Selection Notes

Select this component when a robust 5-watt axial Zener diode is required for high-power applications. Consider the specific ±5% voltage tolerance and the operational temperature limits to ensure compatibility with the target circuit environment and reliability standards.

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 3.3V to 200V, providing versatile options for various industrial and commercial voltage regulation needs.

Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify electrical parameters and physical dimensions before substituting.