1N4741A

Overview

The SMC Diode Solutions 1N4741A is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 11V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1W at ambient temperatures up to 75°C, utilizing the DO-41 axial leaded package. Key electrical characteristics include a maximum dynamic impedance of 8Ω and a reverse leakage current of 5µA at 8.4V. The component supports a junction temperature range up to 175°C and operates within a standard storage temperature range.

Feature Summary

• Provides stable voltage regulation using glass passivated junction technology
• Engineered for high reliability with low leakage current specifications
• Constructed in a hermetically sealed DO-41 axial leaded package

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• General-purpose clipping and clamping applications

Procurement Notes

Verify the specific manufacturer designation when sourcing, as the 1N4741A is a standardized JEDEC part number produced by multiple vendors including Nexperia, Taiwan Semiconductor, and Vishay. Confirm that the supplier explicitly identifies SMC Diode Solutions as the originator if brand-specific traceability or quality standards are required for your assembly process.

Selection Notes

Select this component when a 11V regulation point is needed in an axial through-hole design. Ensure the circuit can accommodate the 1W power rating and that the DO-41 footprint matches the PCB layout. Consider thermal derating requirements if the operating environment exceeds standard ambient conditions, as power handling decreases with rising temperature.

Part Context

This component belongs to the widely recognized 1N47xx series of 1W Zener diodes. These devices are industry-standard replacements used across various electronics sectors. The 1N4741A specifically targets the 11V segment of this family, offering a balance of regulation accuracy and power handling suitable for general industrial and consumer electronic designs.

Replacement Considerations

Direct functional equivalents include the Nexperia 1N4741A,113 and Vishay 1N4741A-TR. Other manufacturers such as Taiwan Semiconductor and EIC also produce compatible parts under the same JEDEC designation. Verify package compatibility and electrical tolerances before substituting.