1N4733G A0G

Overview

The Taiwan Semiconductor Corporation 1N4733G A0G is a silicon planar power Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.1 V with a tolerance of ±5% and a maximum power dissipation of 1 W at 25°C. The device utilizes a DO-41 axial leaded glass package, providing hermetic sealing for environmental protection. Key electrical characteristics include a maximum dynamic impedance of 7 Ω and a knee impedance of 550 Ω. The component supports a junction temperature up to 200°C and operates within a storage temperature range of -65°C to +200°C.

Feature Summary

• Provides stable voltage regulation through unidirectional silicon planar technology
• Features hermetically sealed glass construction for reliable performance in harsh environments
• Offers low dynamic impedance to maintain consistent voltage under varying current conditions

Applications

• Voltage reference circuits requiring precise 5.1 V levels
• Power supply overvoltage protection stages
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific suffix 'A0G' against manufacturer datasheets to confirm exact tolerance and packaging specifications. Ensure the procurement source provides official documentation confirming RoHS compliance status and batch traceability. Cross-reference the part number with Taiwan Semiconductor's current product portfolio to validate availability and manufacturing status before finalizing orders.

Selection Notes

Select this component when a standard 1 W Zener diode with 5.1 V regulation is required in an axial glass package. Consider the 7 Ω dynamic impedance for applications needing tight voltage stability. Evaluate the thermal management requirements based on the 1 W power rating and ensure the circuit design accommodates the specified junction temperature limits for long-term reliability.

Part Context

This component belongs to the widely recognized 1N47 series of silicon Zener diodes, standardized for general-purpose voltage regulation. The 1N4733 designation specifically identifies the 5.1 V variant within this family. Manufacturers produce these devices using planar technology to ensure uniform electrical characteristics and robust mechanical integrity across various industrial and commercial electronic systems.

Replacement Considerations

Compatible substitutes include the 1N4733A from other manufacturers, which shares identical electrical ratings and package dimensions. Verify that alternative sources offer the same ±5% tolerance and DO-41 glass package configuration to ensure direct pin-to-pin compatibility without circuit modification.