1N4731A_T50R

Single Zener Diodes Overview

The onsemi 1N4731A_T50R is a single silicon Zener diode with a nominal voltage of 4.3 V and a 5% tolerance. It operates in the DO-41 glass axial package, dissipating up to 1.0 W at lead temperatures below 50°C. The device features a maximum dynamic impedance of 9 Ω at a test current of 58 mA and a leakage current of 10 µA at 1 V. It supports an operating and storage temperature range from -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation within a 5% tolerance band for precision circuit applications
• Utilizes hermetically sealed glass encapsulation for robust environmental protection
• Supports high thermal stability across a wide operating and storage temperature range

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in power supplies
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific T50R suffix against official documentation to confirm reel packaging specifications. Ensure the component matches the required DO-41 form factor and glass construction. Confirm RoHS compliance status if restricted substances are mandated by the end application standards.

Single Zener Diodes Selection Notes

Select this component when a 4.3 V regulation point is required with tight 5% tolerance. The DO-41 package suits through-hole designs needing high thermal endurance. Verify that the 1.0 W power dissipation rating aligns with the expected load conditions and ambient temperature derating requirements.

Single Zener Diodes Part Context

This part belongs to the 1N4728A through 1N4758A series of one-watt Zener diodes manufactured by onsemi. The series covers a broad voltage spectrum from 3.3 V to 100 V, providing standardized options for various regulation needs while maintaining consistent physical dimensions and electrical characteristics across the lineup.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N4731A equivalents in the DO-41 package. Ensure substitute parts meet the same 4.3 V nominal voltage, 5% tolerance, and 1.0 W power dissipation ratings.