1N4739G R0G

Overview

The 1N4739G R0G is a Zener diode manufactured by Taiwan Semiconductor Corporation. It features a nominal Zener voltage of 9.1 V with a tolerance of ±5%. The device is designed for through-hole mounting in a DO-41 package, providing a power dissipation rating of 1 W. Key electrical characteristics include a maximum reverse leakage current of 10 µA and a Zener impedance of 5 Ω at a test current of 28 mA. The component operates within a temperature range of -65 °C to +200 °C.

Feature Summary

• Hermetically sealed glass encapsulation for corrosion resistance
• Through-hole mounting configuration in standard DO-41 package
• High temperature soldering capability up to 260°C for 10 seconds

Applications

• Voltage regulation circuits
• Overvoltage protection applications
• Reference voltage generation

Procurement Notes

Verify the specific suffix designation against official datasheets to confirm exact tolerance and packaging specifications. Ensure compliance with RoHS and REACH requirements as indicated in product documentation. Confirm lead finish details and mechanical dimensions match design constraints before procurement.

Selection Notes

Select this component for applications requiring a stable 9.1 V reference with high thermal stability. The DO-41 package supports robust through-hole assembly processes. Consider the wide operating temperature range and hermetic sealing for environments demanding long-term reliability and resistance to environmental factors.

Part Context

This part belongs to the 1N47XXG series of small signal Zener voltage regulators from Taiwan Semiconductor. These devices are characterized by their glass encapsulation and standardized JEDEC DO-41 footprint. The series offers various voltage options within a consistent physical form factor for easy integration into existing designs.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4739 equivalents in DO-41 packages. Verify that substitute parts maintain the same 9.1 V nominal voltage, 1 W power rating, and ±5% tolerance to ensure circuit compatibility.