1N4729G R0G

Overview

The 1N4729G R0G is a 3.6V, 1W Zener diode manufactured by Taiwan Semiconductor Corporation in the DO-41 package. It features a ±5% voltage tolerance and operates within a temperature range of -65°C to +175°C. The device utilizes hermetically sealed glass construction with compression bonded technology for high reliability. Key electrical characteristics include a maximum reverse leakage current of 100µA at 1V and a dynamic impedance of 10Ω at the test current of 69mA.

Feature Summary

• Hermetically sealed glass construction with compression bonded die for enhanced durability
• Through-hole mounting design compatible with standard axial lead processes
• Corrosion-resistant external surfaces with pure tin plated leads

Applications

• Voltage regulation in power supply circuits
• Over-voltage protection for sensitive electronic components
• Reference voltage generation in analog signal processing

Procurement Notes

Verify the specific suffix R0G against official datasheets to confirm tape-and-reel packaging specifications. Ensure RoHS compliance status matches project requirements. Confirm that the DO-41 package dimensions align with existing PCB footprints. Validate thermal management capabilities for continuous operation at elevated temperatures.

Selection Notes

Select this component when a robust, hermetically sealed Zener diode is required for high-reliability applications. The DO-41 package offers superior heat dissipation compared to smaller surface-mount alternatives. Consider the ±5% tolerance for precision reference needs. Evaluate the 1W power rating against peak pulse loads in the target circuit design.

Part Context

This part belongs to the 1N47xx series of 1-watt Zener diodes produced by Taiwan Semiconductor. The 'G' suffix typically indicates RoHS compliance and halogen-free manufacturing. The series covers a wide voltage range from 3.3V to 56V, providing standardized options for various regulation requirements across industrial and consumer electronics sectors.

Replacement Considerations

Direct replacements include 1N4729A or 1N4729C from other manufacturers offering identical DO-41 packages and 3.6V specifications. Verify pinout compatibility and ensure equivalent power dissipation ratings are maintained during substitution.