1N4716UR-1

Overview

The 1N4716UR-1 is a surface mount Zener diode manufactured by Microchip Technology. It utilizes the DO-213AA (SMB) package and provides a nominal Zener voltage of 39 V with a standard tolerance of ±5%. The device is rated for a maximum power dissipation of 0.5 W at +50°C, with derating required above this temperature. It features an internal metallurgical bond between the metal slugs and the silicon die to ensure high reliability. The component operates within a junction temperature range of -65°C to +175°C and supports a test current of 50 µA.

Feature Summary

• Surface mount construction in a DO-213AA package serving as an equivalent to the JEDEC registered 1N4716 series.
• Internal metallurgically bonded die attachment for enhanced structural integrity and reliability.
• Wide operating temperature range supporting extreme environmental conditions.

Applications

• Voltage regulation in surface mount circuit designs
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in precision circuits

Procurement Notes

Verify the specific suffix UR-1 against official Microchip documentation to confirm it denotes commercial grade screening rather than military MIL-PRF-19500 standards. Ensure the procurement specification matches the required DO-213AA footprint and that the 0.5 W power rating aligns with the thermal management capabilities of the target PCB layout.

Selection Notes

Select this component when a compact surface mount solution is required for 39 V regulation applications. The DO-213AA package offers a smaller footprint compared to through-hole alternatives while maintaining the 0.5 W power handling capability. Verify that the ±5% voltage tolerance meets the circuit requirements and that the low test current of 50 µA is compatible with the biasing network design.

Part Context

This part belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 W glass surface mount Zener diodes. The series covers a voltage selection from 1.8 V to 43 V. These devices are designed to provide a direct surface mount replacement for traditional axial leaded Zener diodes, facilitating automated assembly processes in modern electronics manufacturing.

Replacement Considerations

Direct replacements include other manufacturers' DO-213AA packaged Zener diodes with a 39 V nominal voltage and 0.5 W power rating. Verify pinout compatibility and thermal characteristics before substitution. Cross-reference with the 1N4716A series if through-hole packaging is acceptable.