1N4746G R0G

Overview

The Taiwan Semiconductor 1N4746G R0G is a 18 V Zener diode housed in the DO-41 axial leaded package. It provides a nominal voltage of 18 V with a tolerance of ±5% and operates at a test current of 14 mA. The device dissipates up to 1 W of power, maintains a maximum reverse leakage current of 5 µA, and exhibits a Zener impedance of 20 Ω. It supports an operating temperature range from -65 °C to +200 °C.

Feature Summary

• Hermetically sealed glass construction for environmental protection
• High thermal stability supporting extended operating temperatures
• Low leakage current characteristics for precision regulation

Applications

• Voltage reference circuits
• Overvoltage protection systems
• Clipper and clamper applications

Procurement Notes

Verify the specific suffix 'R0G' against official datasheets to confirm packaging details such as reel or cut tape specifications. Ensure the manufacturer designation matches Taiwan Semiconductor Corporation exactly. Confirm RoHS compliance status through the latest product documentation before procurement.

Selection Notes

Select this component when a standard 18 V regulation point is required within a through-hole design. The wide operating temperature range makes it suitable for harsh environments. Verify that the 1 W power dissipation rating aligns with the thermal management capabilities of the target circuit board layout.

Part Context

This part belongs to the 1N47xx series of high-power Zener diodes. These components are widely used for general-purpose voltage regulation. The DO-41 package offers robust mechanical strength and reliable soldering for industrial electronics manufacturing processes.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4746 specification. Verify pinout compatibility and ensure equivalent electrical parameters such as Zener impedance and leakage current are met for direct substitution.