1N4741AE3/TR13

Overview

The Microchip Technology 1N4741AE3/TR13 is an axial-lead Zener diode housed in a DO-41 (DO-204AL) package. It features a nominal Zener voltage of 11 V with a power dissipation rating of 1 W. The device offers tight voltage tolerance options, documented as ±2% and ±5% in official specifications. Key electrical parameters include a maximum reverse leakage current of 5 µA and a Zener impedance of 8 Ω. It operates within a temperature range of -65 °C to +150 °C and is supplied in tape-and-reel packaging.

Feature Summary

• Provides stable voltage regulation using Zener breakdown characteristics
• Constructed with axial leads for through-hole mounting applications
• Designed for high-temperature operation up to 150 °C
• Compliant with RoHS directives for environmental safety

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• Clamping applications for signal lines
• General-purpose voltage regulation in power supplies

Procurement Notes

Verify the specific voltage tolerance suffix required for your design, as documentation indicates both ±2% and ±5% variants exist under similar part numbers. Confirm the package type is DO-41/DO-204AL and that the reel quantity matches your assembly line requirements. Ensure the manufacturer is identified as Microchip Technology or its acquired entities like Roving Networks/Microsemi to guarantee component authenticity and traceability.

Selection Notes

Select this component when a 11 V Zener reference is needed with a 1 W power rating. Consider the ±2% tolerance variant if precise voltage accuracy is critical, or the ±5% version for cost-sensitive general applications. Verify that the axial DO-41 package fits your PCB layout constraints. Ensure the operating environment stays within the specified -65 °C to +150 °C range for reliable performance.

Part Context

This part belongs to the standard 1N47xx series of Zener diodes, widely used for basic voltage regulation. The 'E3' suffix typically denotes lead-free compliance, while '/TR13' indicates tape-and-reel packaging. Microchip Technology manufactures these components, often leveraging heritage from acquired companies like Microsemi and Roving Networks, ensuring compatibility with legacy designs.

Replacement Considerations

Direct substitutes include other 11 V, 1 W Zener diodes in DO-41 packages from manufacturers such as ON Semiconductor or Vishay. Ensure replacement parts match the Zener impedance and leakage current specifications. Verify that any alternative also meets RoHS requirements if environmental compliance is mandatory for the final product.