1N4683UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4683UR-1/TR is a 0.5 W glass surface mount Zener voltage regulator in the DO-213AA (MELF) package. It provides a nominal Zener voltage of 3.0 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -65°C to +175°C and features a Zener test current of 50 µA. Maximum reverse leakage current is specified at 0.8 µA, while the maximum DC Zener current is 170 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF surface mount package
• Internal metallurgical bond for high reliability
• Up-screening available in reference to MIL-PRF-19500

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Applications requiring minimal capacitance
• Radiation-hardened environments

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official documentation to confirm RoHS compliance status and tolerance grade. Ensure the ordering part number matches the required screening level and packaging format. Confirm availability through authorized channels as supply conditions may vary.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 3.0 V reference in a compact surface mount form factor. Consider the low test current requirement and radiation hardness characteristics when designing for specialized or harsh environments.

Single Zener Diodes Part Context

This device belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 W Zener diodes. The series offers a voltage selection from 1.8 to 43 volts with standard ±5% tolerance, alongside optional tighter tolerances.

Single Zener Diodes Replacement Considerations

Equivalent commercial versions are available without the UR-1 suffix, such as the 1N4683. Verify pinout compatibility and power dissipation ratings before substitution.