1N4755A-T

Overview

The Vishay General Semiconductor - Diodes Division 1N4755A-T is a single silicon Zener diode with a nominal voltage of 43 V and ±5% tolerance. It features a maximum power dissipation of 1.3 W, a maximum Zener impedance of 1500 Ohms, and a reverse leakage current of 5 µA at 32.7 V. The device operates in the temperature range up to 175°C junction temperature, utilizes an axial DO-204AL (DO-41) through-hole package, and holds AEC-Q101 automotive qualification.

Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• High thermal stability supporting elevated junction temperatures
• Robust glass passivation for environmental protection

Applications

• Voltage regulation in automotive electronic circuits
• Overvoltage protection for sensitive components
• Reference voltage generation in industrial control systems

Procurement Notes

Verify the specific suffix against official datasheets to confirm parameter variations, as different packaging or manufacturing codes may alter electrical characteristics. Confirm current production status directly with the manufacturer, as this specific part number variant may be discontinued or subject to change without notice.

Selection Notes

Select this component when automotive qualification and high-temperature operation are required. Ensure the 1.3 W power rating and 1500 Ohm impedance meet circuit requirements. Verify that the axial leaded package fits the mechanical constraints of the target assembly.

Part Context

This component belongs to the 1N47xx series of Zener diodes manufactured by Vishay. These devices are designed for general-purpose voltage regulation and protection applications. The series offers various voltage ratings within a standardized package format, ensuring compatibility across diverse electronic designs.

Replacement Considerations

• 1N4755A-TR
• 1N4755A-TAP