1N4747G R0G

Overview

The 1N4747G R0G is a single Zener diode manufactured by Taiwan Semiconductor Corporation, designed for voltage regulation applications. It features a nominal Zener voltage of 20 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +175°C. Key electrical parameters include a maximum reverse leakage current of 100 nA and a Zener impedance of 22 Ohms at a test current of 12.5 mA. The component utilizes an axial DO-41 (DO-204AL) package and complies with RoHS3 standards.

Feature Summary

• Provides stable voltage regulation with a 20 V nominal breakdown voltage
• Capable of handling 1 W power dissipation in a compact axial package
• Operates reliably across an extended industrial temperature range up to 175°C
• Complies with RoHS3 environmental compliance standards

Applications

• Voltage reference circuits requiring precise 20 V levels
• Overvoltage protection in low-power electronic systems
• Clamping applications in signal conditioning paths

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS3 compliance status as required by project specifications. Note that this specific part number may be obsolete; validate current manufacturing status and availability before finalizing procurement plans to ensure supply chain continuity.

Selection Notes

Select this component when a 20 V Zener voltage with 5% tolerance is required in an axial leaded package. Ensure the circuit design accommodates the 1 W power rating and 22 Ohm impedance characteristics. Verify thermal management capabilities for operation up to 175°C junction temperature. Consider alternative packages if surface mount technology is preferred over through-hole mounting.

Part Context

This component belongs to the 1N47xx series of Zener diodes, widely used for basic voltage regulation tasks. The 'G' suffix typically indicates lead-free composition, while 'R0G' denotes tape and reel packaging. It serves as a standard discrete semiconductor solution for maintaining stable DC voltages in analog and digital circuits.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing with other manufacturers requires verifying identical electrical parameters including 20 V Zener voltage, 1 W power rating, and DO-41 package compatibility.