1N4112UR-1

Single Zener Diodes Overview

The Microchip Technology 1N4112UR-1 is a single Zener diode designed for surface mount applications in the DO-213AA (SOD-80) package. It features a nominal Zener voltage of 18 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW and exhibits a Zener impedance of 100 ohms. Maximum reverse leakage current is specified at 50 nA, tested at 250 µA. The component operates within an extended temperature range from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using metallurgically bonded glass technology
• Designed for high-temperature reliability with operation up to +175 °C
• Optimized for surface mount assembly in compact SOD-80 packages

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm packaging format, as standard and reel variants exist. Ensure the requested part matches the required operating temperature range and package type for your design. Cross-reference datasheets for exact electrical limits before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a robust 18 V Zener reference is needed in a small surface mount footprint. Consider the ±5% tolerance and 500 mW rating for thermal management. Verify compatibility with existing PCB footprints for the DO-213AA package during the design phase.

Single Zener Diodes Part Context

This component belongs to Microchip's series of round-end voltage regulator diodes. These devices utilize metallurgically bonded glass construction to ensure durability and consistent performance under harsh conditions. The series is widely used in industrial and automotive electronics where reliability is critical.

Single Zener Diodes Replacement Considerations

VLZ18C-GS08 is documented as a secondary substitute maintaining similar 18 V and 500 mW specifications. Verify pinout and package dimensions before substitution.