1N4716UR-1/TR

Overview

The Microchip Technology 1N4716UR-1/TR is a 0.5 W surface mount Zener diode in the DO-213AA glass MELF package. It provides a nominal Zener voltage of 39 V with a standard tolerance of ±5%. The device operates at a test current of 50 µA and features an internal metallurgical bond for high reliability. The 'TR' suffix indicates tape and reel packaging. Maximum ratings include a junction temperature range of -65°C to +175°C, steady-state power dissipation of 0.5 W, and a forward voltage of 1.5 V at 100 mA.

Feature Summary

• Hermetically sealed glass DO-213AA (MELF) surface mount package
• Internal metallurgical bond between metal slugs and silicon die
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Inherently radiation hard

Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic circuits requiring hermetic sealing
• Radiation-hardened applications

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm compliance status and screening level. The 'TR' suffix denotes tape and reel packaging; ensure this matches the intended assembly process. Confirm whether the device requires commercial or military-grade screening based on application requirements. Check for RoHS compliance availability if restricted materials are prohibited.

Selection Notes

Select this component when a 39 V Zener reference is required in a compact surface mount form factor. The DO-213AA package offers a surface mount equivalent to through-hole JEDEC types. Consider the low test current of 50 µA for low-power biasing applications. Evaluate thermal resistance values if operating near maximum power dissipation limits.

Part Context

This part belongs to the 1N4678UR-1 thru 1N4717UR-1 series of 0.5 W glass surface mount Zener voltage regulators. The series covers a voltage selection from 1.8 to 43 volts. These devices serve as surface mount equivalents to the registered 1N4678 through 1N4717 series. Tighter voltage tolerances of 2% and 1% are available within this family.

Replacement Considerations

Equivalent through-hole versions exist as 1N4716 or 1N4716-1. Surface mount alternatives without the metallurgical bond may be considered if hermetic sealing is not required.