1N4761AUR/TR

Overview

The Microchip Technology 1N4761AUR/TR is a surface mountable 1.0 W glass Zener diode in the DO-213AB MELF package. It provides a nominal Zener voltage of 75 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 10 µA at 56 V. Electrical characteristics include a test current of 3.3 mA, a dynamic impedance of 5 Ω at the test current, and a maximum regulator current of 60 mA.

Feature Summary

• Hermetically sealed glass MELF package suitable for high reliability applications
• Electrically equivalent to JEDEC registered axial-leaded equivalents
• Inherently radiation hard per MicroNote 050
• Leadless design ideal for high density mounting

Applications

• Voltage regulation in high density circuit designs
• Applications requiring low parasitic requirements
• High reliability systems specified by source control drawings

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm exact electrical tolerances and packaging configurations. Confirm RoHS compliance status if required by project specifications. Ensure the supplier provides traceability data consistent with the manufacturer's quality standards for this component series.

Selection Notes

Select this component when a surface mount solution is required that matches the performance of traditional axial leads. The DO-213AB package facilitates automated placement while maintaining hermetic sealing. Consider the thermal resistance values when designing PCB layouts to ensure steady-state power dissipation limits are not exceeded during operation.

Part Context

This part belongs to the 1N4728AUR through 1N4764AUR series of surface mount Zener diodes. The series offers a wide selection of voltages from 3.3 V to 100 V. These devices serve as direct surface mount replacements for the corresponding JEDEC registered 1N4728A through 1N4764A axial-leaded diodes.

Replacement Considerations

Surface mount equivalents are available as SMAJ4728A to SMAJ4764A and MLL4728A to MLL4764A.