1N4734A-TR

Overview

The Vishay 1N4734A-TR is a silicon planar power Zener diode designed for voltage stabilization and clipping applications. It features a nominal Zener voltage of 5.6 V with a standard tolerance of ±5%. The device operates within a test current range of 3.3 to 76 mA and provides a maximum power dissipation of 1.3 W. Packaged in the DO-41 (DO-204AL) through-hole format, it supports a junction temperature up to 175 °C and includes a dynamic resistance of 5 Ω at the specified test current.

Feature Summary

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

Applications

• Voltage stabilization
• Clipping circuits

Procurement Notes

Verify that the ordering code suffix matches the required packaging configuration, as the -TR designation indicates taped units per reel. Confirm compliance requirements against the material categorization definitions provided by Vishay. Ensure lead temperatures during soldering do not exceed the specified peak limits to maintain component integrity.

Selection Notes

Select this component when a 5.6 V reference point is required in through-hole designs. Evaluate the 1.3 W power dissipation capability against the expected load conditions. Consider the 5 Ω dynamic resistance for circuit stability requirements. Verify that the operating ambient temperature remains within the specified range to prevent exceeding thermal limits.

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 selection from 3.3 V to 75 V. All devices share the same DO-41 package outline and fundamental electrical characteristics, differing primarily in their specific Zener voltage ratings and associated test currents.

Replacement Considerations

Cross-reference with other manufacturers offering equivalent 5.6 V, 1.3 W Zener diodes in the DO-41 package. Verify that substitute components meet the same ±5% voltage tolerance and thermal resistance specifications to ensure circuit compatibility.