1N4764A

Overview

The Good-Ark Semiconductor 1N4764A is a silicon planar Zener diode housed in a hermetically sealed DO-41 glass package. It provides a nominal Zener voltage of 100V with a tolerance of ±5%. The device supports a maximum power dissipation of 1W at 25°C ambient temperature and operates within a junction temperature range up to 200°C. Key electrical parameters include a test current (IZT) of 2.5mA, a maximum Zener impedance (ZZT) of 350Ω, and a maximum reverse leakage current of 5µA at 76V.

Feature Summary

• Glass passivated junction for enhanced stability
• Hermetically sealed DO-41 glass body
• Low Zener impedance characteristics
• High temperature soldering capability

Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Procurement Notes

Verify the specific manufacturer source when sourcing this component, as the 1N4764A designation is utilized by multiple semiconductor producers. Confirm that the received unit matches the Good-Ark Semiconductor datasheet specifications, particularly regarding the DO-41G package dimensions and hermetic sealing requirements. Ensure compliance with RoHS directives if lead-free finishes are required for the assembly process.

Selection Notes

Select the 1N4764A for applications requiring a precise 100V reference point within a standard axial through-hole form factor. Consider the 350Ω maximum dynamic impedance when designing for low-noise sensitivity. Verify that the circuit's thermal environment allows for 1W dissipation or implement derating strategies for elevated ambient temperatures above 25°C.

Part Context

This component belongs to the 1N47xx series of 1W Zener diodes manufactured by Good-Ark Semiconductor. The series covers a wide voltage range from 3.3V to 100V, all sharing the same DO-41 glass package and mechanical data. The 1N4764A represents the upper end of this voltage spectrum, offering high-voltage regulation capabilities in a compact, robust package suitable for general-purpose industrial electronics.

Replacement Considerations

Cross-reference with other manufacturers' 1N4764A parts to ensure pinout compatibility and similar electrical tolerances. Verify package dimensions match the DO-41 outline provided in the Good-Ark datasheet to confirm board layout fit.