1N4764AUR

Overview

The 1N4764AUR is a surface-mount Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 100 V with a standard tolerance of ±5%. The device is housed in a DO-213AB (MELF) package and supports a maximum power dissipation of 1 W. It operates within a temperature range of -65°C to +175°C, offering high reliability for precision voltage regulation applications.

Feature Summary

• Hermetically sealed glass MELF construction for environmental protection
• High operating temperature capability up to 175°C
• Standardized JEDEC registration for compatibility

Applications

• Precision voltage reference circuits
• Overvoltage protection systems
• Temperature compensated regulator designs

Procurement Notes

Verify the specific suffix 'A' indicates the required 5% tolerance level. Confirm the DO-213AB package dimensions match the target PCB footprint. Ensure the 1W power rating aligns with the thermal management design of the final assembly.

Selection Notes

Select this component when a hermetic surface-mount solution is required for high-reliability environments. The 100V rating suits medium-voltage regulation tasks. Compare against through-hole equivalents if space constraints allow for alternative packaging options.

Part Context

This part belongs to the 1N47xx series of silicon planar Zener diodes. It shares electrical characteristics with the 1N4764A but utilizes a surface-mount form factor. The series covers a wide voltage range from 3.3V to 100V.

Replacement Considerations

Direct substitutes include MX1N4764CUR from Microsemi/Microchip. Verify pinout compatibility and ensure the replacement meets the same hermetic sealing requirements.