1N4683UR-1

Single Zener Diodes Overview

The Microchip Technology 1N4683UR-1 is a Zener diode featuring a nominal voltage of 3V with a 5% tolerance. It operates within the 1N4678UR-1 through 1N4717UR-1 series, offering a power dissipation rating of 0.5W. The device utilizes a DO-213AA (MELF-2) glass surface mount package and is hermetically sealed. It supports a low test current of 50 µA for regulation.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF-2 surface mount construction
• Low test current operation at 50 µA for precise regulation
• Surface mount equivalent to JEDEC registered axial packages

Single Zener Diodes Applications

• Voltage regulation in MIL-PRF-19500 compliant circuits
• Reference voltage generation in precision analog systems
• Overvoltage protection in space-constrained PCB designs

Single Zener Diodes Procurement Notes

Verify that the specific part number suffix matches the required qualification level, as up-screening options exist relative to MIL-PRF-19500. Confirm RoHS compliance status if commercial grade suffices, noting that military-grade versions may differ. Ensure the supplier provides documentation confirming the hermetic seal integrity and glass MELF-2 package authenticity before finalizing acquisition.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability applications. The DO-213AA package serves as the direct surface mount replacement for the traditional DO-35 axial leaded 1N4683. Consider the 50 µA test current requirement for bias circuit design, which differs from standard higher-current regulators.

Single Zener Diodes Part Context

This component belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 watt glass surface mount Zener diodes manufactured by Microchip Technology. The series covers voltages from 1.8 to 43 volts. The 1N4683UR-1 specifically corresponds to the 3V variant within this standardized lineup of hermetically sealed devices.

Single Zener Diodes Replacement Considerations

The 1N4683UR-1 is the surface mount equivalent of the 1N4683 axial diode. Verify pinout compatibility and thermal characteristics when substituting into existing layouts designed for DO-35 packages.