1N5279/TR

Single Zener Diodes Overview

The Microchip Technology 1N5279/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 180 V with a tolerance of ±5%. The device has a maximum power dissipation of 500 mW and operates in the through-hole DO-204AH (DO-35) axial package. Key electrical characteristics include a maximum reverse leakage current of 100 nA at 130 V, a forward voltage of 1.5 V at 200 mA, and a Zener impedance of 2200 Ohms. It supports a junction temperature range from -65°C to 175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation within a wide operating temperature range suitable for demanding environments.
• Utilizes a glass axial-leaded DO-35 package for reliable through-hole mounting.
• Offers tight voltage tolerance for precision reference applications.

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix /TR indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status as historical data may vary by production batch. Ensure the required voltage tolerance and power rating align with circuit design specifications before procurement.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 180 V Zener reference with moderate power handling. Compare against similar series members like 1N5278 or 1N5280 if different voltage levels are needed. Verify package compatibility with existing PCB footprints.

Single Zener Diodes Part Context

This part belongs to the popular 1N5221 through 1N5281B series of 0.5 watt Zener Voltage Regulators. The series provides a selection of voltages from 2.4 to 200 volts in standard tolerances. These components are widely used in industrial and commercial electronics for basic voltage clamping and referencing tasks.

Single Zener Diodes Replacement Considerations

Check for direct equivalents such as 1N5279B or other manufacturers' 1N5279 variants. Ensure replacement parts match the 500 mW power rating and DO-35 package dimensions for mechanical fit.