1N5272A-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5272A-1/TR is a single silicon Zener diode voltage regulator designed for through-hole mounting. It features a DO-204AH (DO-35) axial glass package with two pins. The device specifies a nominal Zener voltage of 110 V with a tolerance of ±10%. It has a maximum power dissipation of 500 mW and operates within a temperature range of -65°C to +200°C. Key electrical characteristics include a maximum reverse leakage current of 116 µA, a Zener impedance of 1.7 kΩ, and a forward voltage of 1.1 V.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial construction for environmental stability
• High operating temperature capability up to 200°C
• Single unidirectional Zener configuration

Single Zener Diodes Applications

• Voltage regulation in high-temperature electronic circuits
• Overvoltage protection for sensitive components
• Reference voltage sources in precision instrumentation

Single Zener Diodes Procurement Notes

Verify the specific suffix -1/TR against official Microchip documentation to confirm tape-and-reel packaging and RoHS status. Ensure the DO-35 package dimensions match the target PCB layout. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity before procurement.

Single Zener Diodes Selection Notes

Select this component when a stable 110 V reference is required in space-constrained axial packages. The high thermal limit allows operation in harsh environments where standard silicon devices may fail. Consider the 1.7 kΩ impedance for applications requiring moderate load regulation performance without external buffering.

Single Zener Diodes Part Context

This part belongs to the 1N52xx series of hermetically sealed Zener diodes manufactured by Microchip Technology. These components are widely used in military and aerospace applications due to their robust glass encapsulation and wide temperature range. The -1/TR designation typically indicates a specific reel quantity or processing variant within the standard product line.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5272A variants in DO-35 packages. Verify that replacement parts maintain the same 110 V Zener voltage, 500 mW power rating, and hermetic sealing requirements to ensure circuit compatibility.