1N4754A G

Overview

The Microsemi Corporation 1N4754A G is a silicon Zener diode designed for voltage regulation applications. It features a hermetically sealed glass body housed in the DO-204AL (DO-41) axial leaded package. The device provides a nominal Zener voltage of 39V with a standard tolerance and operates at a power dissipation rating of 1W. Key electrical characteristics include a maximum reverse leakage current of 5uA, a Zener impedance of 60 Ohms, and a test current of 6.5mA. The component supports an operating temperature range from -65°C to +200°C.

Feature Summary

• Hermetically sealed glass encapsulation ensures environmental protection and reliability
• Axial leaded DO-41 package design facilitates through-hole mounting
• Capable of maintaining stable voltage regulation under specified thermal conditions

Applications

• Voltage reference circuits requiring high stability
• Overvoltage protection systems
• General-purpose voltage regulation tasks

Procurement Notes

Verify compliance with specific RoHS directives as indicated by the manufacturer's documentation. Confirm that the hermetic seal integrity meets project requirements for harsh environments. Ensure the DO-41 package dimensions align with the target PCB layout constraints before finalizing procurement decisions.

Selection Notes

Select this component when a robust, hermetically sealed solution is required for 39V regulation. The glass construction offers superior thermal performance compared to plastic alternatives. Consider the higher rated temperature capability if the application involves elevated ambient temperatures or significant self-heating.

Part Context

This part belongs to the JEDEC registered 1N4728A through 1N4764A series of 1-watt Zener diodes. The 'G' suffix specifically denotes the glass body variant, which provides hermetic sealing and higher temperature ratings compared to the plastic molded versions within the same family.

Replacement Considerations

Equivalent parts include other manufacturers' 1N4754A variants in the DO-41 package. Verify that substitute components maintain the same hermetic sealing specification and thermal resistance characteristics to ensure identical performance in critical applications.