1N4741AHR1G

Overview

The 1N4741AHR1G is a silicon planar Zener diode manufactured by Taiwan Semiconductor. It provides voltage regulation with a nominal Zener voltage of 11V and a tolerance of 5%. The device features a power dissipation rating of 1W and operates within a temperature range of -55°C to +150°C. It is housed in the DO-204AL (DO-41) axial leaded package, suitable for through-hole mounting. The component is qualified under AEC-Q101 standards for automotive applications.

Feature Summary

• Glass passivated junction construction for enhanced reliability
• Automotive grade qualification compliant with AEC-Q101 standards
• High thermal stability supporting extended operating temperatures

Applications

• Voltage regulation in automotive electronic circuits
• Protection against overvoltage transients in vehicle systems
• Reference voltage generation in industrial control modules

Procurement Notes

Verify the specific suffix R1G confirms the reel packaging configuration and quantity increments. Confirm AEC-Q101 automotive qualification status directly with the manufacturer or authorized distributor documentation. Ensure the DO-204AL package dimensions match the target PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when an 11V regulation point is required in high-reliability environments. The AEC-Q101 qualification makes it suitable for automotive applications where standard commercial parts may not suffice. Consider the 1W power rating and DO-41 package size for thermal management and space constraints in the design.

Part Context

This part belongs to the 1N47xxA series of 1-watt Zener diodes produced by Taiwan Semiconductor. The series covers a wide voltage range from 3.3V to 200V. The 1N4741 variant specifically targets the 11V regulation segment within this family, offering consistent performance characteristics across the product line.

Replacement Considerations

Cross-reference with other manufacturers' 1N4741A equivalents in the DO-41 package. Verify that substitute parts meet the same AEC-Q101 automotive qualification and 11V ±5% tolerance specifications to ensure functional compatibility.