1N4924/TR

Overview

The 1N4924/TR is a single Zener diode manufactured by Microchip Technology, designed for temperature-compensated voltage regulation applications. It features a nominal Zener voltage of 19.2 V with a tight tolerance of ±5%. The device is rated for a power dissipation of 500 mW and operates within an extended temperature range from -65 °C to +175 °C. Packaged in the DO-35 (DO-204AH) axial leaded format, it is supplied in tape and reel configuration for automated assembly processes.

Feature Summary

• Temperature compensated design ensures stable voltage regulation across wide thermal variations
• High reliability construction suitable for demanding industrial and military environments
• Axial through-hole package facilitates standard PCB mounting and manual soldering

Applications

• Precision voltage reference circuits requiring thermal stability
• Overvoltage protection in sensitive electronic instrumentation
• Voltage regulation in aerospace and defense systems

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm the tape and reel packaging variant. Ensure that the procurement channel sources components directly from authorized distributors to guarantee authenticity and traceability. Confirm RoHS compliance status as indicated by the manufacturer's current product specifications before finalizing orders.

Selection Notes

Select this component when a stable 19.2 V reference is required under varying thermal conditions. The DO-35 package is appropriate for low-current applications where axial leads are preferred over surface mount options. Evaluate the 500 mW power rating against the expected load current to ensure operation remains within safe thermal limits during continuous duty cycles.

Part Context

This part belongs to Microchip’s legacy discrete semiconductor portfolio, specifically the temperature-compensated Zener diode series. These devices utilize specialized doping profiles to minimize voltage drift with temperature changes, offering superior performance compared to standard Zener diodes in precision analog circuits and critical control systems.

Replacement Considerations

Direct substitutes include other temperature-compensated Zener diodes with matching 19.2 V ratings and ±5% tolerance. Verify pin compatibility and power dissipation capabilities when considering alternatives from different manufacturers to ensure circuit integrity.