1N748AUR-1/TR

Single Zener Diodes Overview

The 1N748AUR-1/TR is a single silicon Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 3.9 V with a tolerance of ±5%. The device is designed for surface mount installation in the DO-213AA (SOD-80) package. It supports a power dissipation of 500 mW and operates within a temperature range of -65 °C to +175 °C. Key electrical characteristics include a maximum reverse leakage current of 2 µA and a Zener impedance of 20 ohms.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at a nominal 3.9 V level
• Engineered for high-temperature reliability up to 175 °C
• Utilizes a compact surface-mount DO-213AA package

Single Zener Diodes Applications

• Voltage reference circuits
• Over-voltage protection
• Biasing networks

Single Zener Diodes Procurement Notes

Verify the specific suffix UR-1/TR against official Microchip documentation to confirm the exact voltage tolerance and packaging configuration. Ensure the procurement channel sources genuine components from authorized distributors to guarantee compliance with the specified operating temperatures and electrical parameters.

Single Zener Diodes Selection Notes

Select this component when a precise 3.9 V reference is required in space-constrained designs. The DO-213AA package facilitates automated assembly. Consider the 500 mW power rating and wide thermal operating range when designing for harsh environments or high-reliability applications.

Single Zener Diodes Part Context

This part belongs to the standard 1N748 series of Zener diodes, adapted for surface mount technology. It serves as a modern replacement for through-hole equivalents in compact electronic systems. The product line emphasizes robust performance across extreme industrial temperature ranges.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N748CUR-1/TR and JANTX1N748AUR-1. Verify pinout compatibility and ensure the substitute matches the 3.9 V Zener voltage and DO-213AA footprint before integration.