1N4763A-TAP

Overview

The 1N4763A-TAP is a single Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 91 V with a tolerance of ±5%. The device has a maximum power dissipation of 1.3 W and a maximum Zener impedance (Zzt) of 250 Ohms. Reverse leakage current is specified at 5 µA when measured at 69.2 V. The forward voltage drop is 1.2 V at a forward current of 200 mA. It operates within a junction temperature range up to 175°C and utilizes the DO-204AL (DO-41) axial through-hole package.

Feature Summary

• Provides stable voltage regulation at a nominal 91 V level for circuit protection and reference applications.
• Capable of handling a maximum power dissipation of 1.3 W in an axial leaded package.
• Complies with AEC-Q101 qualification standards for automotive grade reliability.
• Operates reliably at elevated junction temperatures up to 175°C.

Applications

• Voltage regulation in automotive electronic systems
• Overvoltage protection circuits requiring high breakdown voltage
• Precision voltage reference sources in industrial equipment

Procurement Notes

Verify the specific suffix TAP against official Vishay documentation to confirm packaging configuration, as suffixes may denote tape-and-reel or other bulk formats. Ensure the component meets AEC-Q101 requirements if used in automotive contexts. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before procurement.

Selection Notes

Select this component when a high-voltage Zener reference near 91 V is required with moderate power handling capabilities. The DO-204AL package suits through-hole designs where axial leads are preferred. Consider the 250 Ohm impedance value for dynamic regulation needs. Verify that the 1.3 W power rating aligns with the thermal management design of the target application.

Part Context

This part belongs to the 1N47xx series of Zener diodes produced by Vishay. The series offers various voltage ratings from low to high values, all sharing similar 1.3 W power dissipation characteristics and DO-41 packaging. The 1N4763A variant specifically targets higher voltage regulation needs within this standard product line.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N4763A parts or equivalent 91 V Zener diodes in DO-41 packages. Ensure replacement devices match the 1.3 W power rating, ±5% tolerance, and AEC-Q101 qualification if automotive use is intended. Verify pinout compatibility and thermal performance similarities.