1N4751UR-1/TR

Overview

The Microchip Technology 1N4751UR-1/TR is a surface mountable 1.0 W glass Zener diode in the DO-213AB MELF package. It provides a nominal Zener voltage of 30 V with a standard tolerance of ±10%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 5 µA at 30 V. Electrical characteristics include a test current of 8.5 mA, a dynamic impedance of 40 Ohms, and a maximum forward voltage of 1.2 V at 200 mA.

Feature Summary

• Hermetically sealed glass MELF package for high reliability applications
• Surface mount design suitable for high density mounting
• Inherently radiation hard per MicroNote 050

Applications

• Voltage regulation in high density circuits
• High reliability applications requiring source control drawings
• Low parasitic requirement environments

Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm tolerance levels and screening options. Confirm RoHS compliance status if required by the application. Ensure the ordering part number matches the desired voltage tolerance and packaging format before procurement.

Selection Notes

Select this component for applications requiring a 1 W surface mount Zener diode with a 30 V breakdown voltage. Consider the DO-213AB package dimensions for PCB layout compatibility. Evaluate thermal derating requirements based on ambient temperature and mounting conditions to ensure steady-state power dissipation limits are not exceeded.

Part Context

This component belongs to the 1N4728UR through 1N4764AUR series of surface mount glass Zener diodes. It serves as the surface mount equivalent to the JEDEC registered 1N4728A through 1N4764A axial leaded series. The series offers a wide selection of Zener voltages ranging from 3.3 V to 100 V.

Replacement Considerations

Electrically similar to the JEDEC registered 1N4728 thru 1N4764 zener series.