1N4733A-TR

Overview

The Vishay General Semiconductor - Diodes Division 1N4733A-TR is a silicon planar power Zener diode housed in the DO-204AL (DO-41) axial through-hole package. It provides a nominal Zener voltage of 5.1 V with a standard tolerance of ±5%. The device supports a maximum power dissipation of 1.3 W and operates within a junction temperature range up to 175 °C. Electrical characteristics include a test current of 49 mA, a reverse leakage current of 10 µA at 1 V, and a dynamic resistance of 7 Ω.

Feature Summary

• Utilizes silicon planar technology for high reliability
• Designed for stabilizing and clipping circuits with high power ratings
• Features low reverse leakage current typical above specified thresholds

Applications

• Voltage stabilization
• Clipping circuits

Procurement Notes

Verify that the ordering suffix matches the required packaging format, as the TR designation indicates tape and reel configuration. Confirm compliance requirements against specific project standards, noting material categorization definitions are available via official documentation links. Ensure lead soldering conditions adhere to specified peak temperatures during assembly processes.

Selection Notes

Select this component when a 5.1 V reference with ±5% tolerance is required in a through-hole design. Consider the 1.3 W power rating and thermal resistance limits for heat dissipation planning. Verify that the 7 Ω dynamic resistance meets circuit impedance requirements. Check if automotive qualification or specific flammability ratings are necessary for the target application environment.

Part Context

This part belongs to the 1N4728A through 1N4761A series of silicon Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 3.3 V to 75 V, all sharing similar physical dimensions and mounting styles. The 1N4733A variant specifically targets the 5.1 V segment of this standardized product line.

Replacement Considerations

1N4733A-TAP