1N4731G R0G

Overview

The 1N4731G R0G is a Zener diode manufactured by Taiwan Semiconductor Corporation. It belongs to the 1N4728G through 1N4758G series of small signal products, featuring a 1W power dissipation rating and housed in a DO-41 package. The device utilizes a hermetically sealed glass body with corrosion-resistant external surfaces and solderable tin terminals. It provides voltage regulation within a range of 3.3 to 56 volts, offering standard ±5% tolerance for the 'G' suffix variant. The component supports through-hole mounting and guarantees high-temperature soldering capability at 260°C for 10 seconds.

Feature Summary

• Hermetically sealed glass construction ensuring environmental resistance
• Through-hole mounting design compatible with standard DO-41 footprints
• Corrosion-resistant external surfaces with readily solderable tin terminals

Applications

• Voltage regulation circuits requiring 1W power handling
• Clipping and stabilizing applications in electronic systems
• General-purpose discrete semiconductor protection

Procurement Notes

Verify RoHS compliance status as datasheets indicate e3 marking availability but general listings may vary. Confirm specific tolerance requirements, noting that 'G' denotes ±5% while 'C' indicates tighter tolerances. Ensure procurement channels provide official manufacturer documentation to validate hermetic sealing claims and thermal ratings against current production standards.

Selection Notes

Select this component when a robust, hermetically sealed axial leaded Zener diode is required for high-reliability environments. The DO-41 glass package offers superior thermal stability compared to plastic alternatives. Consider the ±5% voltage tolerance suitable for general regulation tasks where extreme precision is not critical, and verify compatibility with high-temperature soldering processes up to 260°C.

Part Context

This part is part of the widely recognized 1N47xx series of 1-watt Zener diodes. The 'G' suffix specifically identifies the ±5% tolerance version within Taiwan Semiconductor's lineup. It serves as a direct replacement for legacy MIL-spec components in modern designs, bridging traditional military-grade reliability with contemporary surface-mount and through-hole manufacturing needs.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4731A or 1N4731 variants in DO-41 packages. Verify that replacements maintain the same 1W power dissipation and hermetic sealing if environmental resistance is required. Cross-reference terminal plating specifications to ensure solderability matches the original tin finish.