1N4741A-TR

Overview

The Vishay 1N4741A-TR is a silicon planar power Zener diode with a nominal voltage of 11 V and a maximum power dissipation of 1.3 W. It operates within a junction temperature range of -65 °C to +175 °C and features a standard Zener voltage tolerance of ± 5 %. The device utilizes the DO-41 (DO-204AL) through-hole package, weighs approximately 310 mg, and has a UL 94 V-0 flammability rating. Electrical characteristics include a test current of 23 mA, a reverse leakage current of 5 µA at 9.1 V, and a dynamic resistance of 8 Ω.

Feature Summary

• Silicon planar construction designed for high-power stabilizing and clipping circuits
• Standardized Zener voltage tolerance of ± 5 %
• Robust thermal performance supporting operation up to 175 °C junction temperature

Applications

• Voltage stabilization
• Clipping circuits

Procurement Notes

Verify that the ordering code matches the specific suffix required for your packaging needs, such as TR for taped units or TAP for ammopacks. Confirm compliance requirements against Vishay's material categorization documentation. Ensure lead temperatures during soldering do not exceed the specified peak limits to maintain component integrity.

Selection Notes

Select this component when an 11 V reference point is required in through-hole designs. Evaluate the 1.3 W power dissipation capability against expected thermal loads. Consider the 8 Ω dynamic resistance for applications requiring stable regulation under varying load currents.

Part Context

This part belongs to the 1N4728A to 1N4761A series of single Zener diodes manufactured by Vishay Semiconductors. The series covers a broad voltage range from 3.3 V to 75 V, providing standardized options for various power regulation and protection circuit implementations across industrial and commercial electronics.

Replacement Considerations

Cross-reference with other manufacturers' 1N4741A equivalents. Verify that substitute components match the 11 V nominal voltage, 1.3 W power rating, and DO-41 package dimensions to ensure mechanical and electrical compatibility.