1N4745A-TR

Overview

The Vishay 1N4745A-TR is a silicon planar power Zener diode in the 1N4728A to 1N4761A series, housed in an axial DO-41 (DO-204AL) package. It provides a nominal Zener voltage of 16 V with a standard tolerance of ±5 %. The device operates at a test current of 15.5 mA and supports a maximum power dissipation of 1300 mW. Key electrical parameters include a reverse leakage current of 5 µA at 12.2 V and a dynamic resistance of 16 Ω at the test current. It withstands a surge current of 285 mA and maintains a junction temperature up to 175 °C.

Feature Summary

• Silicon planar construction designed for high-power stabilization and clipping applications
• Standardized Zener voltage tolerance of ±5 % for consistent performance
• Robust thermal management capabilities supporting a junction temperature up to 175 °C

Applications

• Voltage stabilization circuits
• Signal clipping circuits

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm the tape-and-reel configuration. Ensure that the minimum order quantity requirements align with your production volume needs. Cross-reference the component marking and physical dimensions to validate authenticity upon receipt.

Selection Notes

Select this component when a precise 16 V reference is required within the 1N47xx series. Consider the 1300 mW power rating and DO-41 package size for through-hole implementations. Evaluate the 16 Ω dynamic resistance to ensure it meets the regulation accuracy requirements of the target circuit design.

Part Context

This part belongs to the Vishay 1N4728A to 1N4761A series of single Zener diodes. These components are engineered for general-purpose voltage regulation tasks. The series covers a wide range of nominal voltages from 3.3 V to 75 V, offering designers a standardized selection for various DC supply and protection applications.

Replacement Considerations

Consult official substitution lists for equivalent parts within the same voltage and power class.