1N4923A/TR

Overview

The Microchip Technology 1N4923A/TR is a single silicon Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 19.2 V with a maximum power dissipation of 500 mW. The component is housed in an axial DO-204AH (DO-35) glass passivated package, suitable for through-hole mounting. This specific variant includes the /TR suffix, indicating it is supplied in a tape and reel format for automated assembly processes.

Feature Summary

• Utilizes glass passivation for environmental protection
• Designed for stable voltage regulation at 19.2 V
• Available in axial leaded package for through-hole integration

Applications

• Voltage reference circuits
• Overvoltage protection stages
• General-purpose voltage regulation

Procurement Notes

Verify that the /TR suffix corresponds to the required tape and reel packaging configuration for your manufacturing line. Confirm the DO-204AH package dimensions match your PCB footprint requirements. Ensure the 19.2 V Zener voltage specification aligns with the target circuit design parameters before finalizing procurement orders.

Selection Notes

Select this component when a 19.2 V regulation point is required within a 500 mW power budget. The axial DO-35 package is appropriate for standard through-hole assembly techniques. Consider the tape and reel delivery format if high-volume automated placement is necessary for production efficiency.

Part Context

This part belongs to the 1N49xx series of Zener diodes manufactured by Microchip Technology. These components are widely used in electronic designs requiring precise voltage clamping or reference levels. The 1N4923A specifically targets the 19.2 V market segment within the broader family of axial glass-passivated Zener devices.

Replacement Considerations

The 1N4922A/TR is listed as a related product from the same manufacturer. Verify electrical compatibility and package equivalence before substitution.