1N4772

Overview

The Microchip Technology 1N4772 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 9.1 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW and operates within a temperature range of -55°C to +100°C. Packaged in the DO-204AH (DO-35) axial through-hole format, it exhibits a Zener impedance of 200 Ohms and a maximum reverse leakage current of 10 uA.

Feature Summary

• Provides stable voltage regulation at a nominal 9.1 V output level
• Constructed in a hermetically sealed glass axial package for environmental protection
• Capable of handling up to 500 mW of power dissipation
• Maintains performance across an extended industrial temperature range

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks

Procurement Notes

Verify compliance requirements as this component does not meet RoHS standards. Confirm that the specified operating temperature range aligns with system constraints. Ensure the through-hole mounting style fits the target PCB layout. Validate that the 500 mW power rating suffices for the intended thermal environment.

Selection Notes

Select this component when a standard 9.1 V reference is required in a compact axial package. Consider the specific Zener impedance and leakage characteristics for precision needs. Evaluate the non-RoHS status against regulatory mandates. Compare the thermal resistance of the glass body against plastic alternatives if higher heat dissipation is necessary.

Part Context

This part belongs to the 1N47xx series of Zener diodes manufactured by Microchip Technology. The series offers various voltage options within the same physical footprint. These components are widely used in discrete semiconductor designs where reliable voltage clamping or referencing is essential for circuit stability.

Replacement Considerations

Direct substitutes include 1N4765A, 1N4767A, 1N4768A, and 1N4769A from Microchip Technology.