1N4764A R1G

Overview

The 1N4764A R1G is a silicon planar Zener diode manufactured by Taiwan Semiconductor Corporation. It provides voltage regulation with a nominal Zener voltage of 100 V and a tolerance of ±5%. The device is designed for through-hole mounting in the DO-204AL (DO-41) axial leaded package. It features a maximum power dissipation of 1 W at ambient temperatures up to 50°C, with a junction temperature rating extending to +175°C. The component includes built-in strain relief for mechanical stability and is RoHS compliant.

Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Features hermetic glass passivated junction construction
• Includes built-in strain relief for enhanced mechanical durability

Applications

• Voltage reference circuits requiring high stability
• Power supply overvoltage protection stages
• Clipping and waveform shaping applications

Procurement Notes

Verify the specific suffix 'R1G' against official Taiwan Semiconductor documentation to confirm reel packaging specifications and exact electrical tolerances. Ensure compatibility with existing board layouts for the DO-41 package dimensions. Confirm RoHS compliance status for the specific manufacturing batch prior to integration into regulated assemblies.

Selection Notes

Select this component when a precise 100 V regulation point is required within a 5% tolerance band. The DO-41 package suits designs needing robust axial leads and high thermal resistance. Consider the 1 W power rating limits for continuous operation scenarios and ensure adequate heatsinking or airflow if operating near maximum dissipation thresholds.

Part Context

This part belongs to the standard 1N47xx series of 1 Watt Zener diodes widely used in general electronics. The 'A' suffix typically denotes tighter voltage tolerance compared to standard variants. As a Taiwan Semiconductor product, it adheres to industry-standard pinouts and mechanical dimensions for cross-manufacturer interchangeability where applicable.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4764A parts in DO-41 packages, such as those from Microchip or onsemi. Verify that replacement components maintain the same 100 V nominal voltage, ±5% tolerance, and 1 W power rating to ensure circuit functionality remains unchanged.