1N5271BUR/TR

Single Zener Diodes Overview

The Microchip Technology 1N5271BUR/TR is a single silicon Zener diode housed in the DO-213AB (SOD-80) surface-mount package. It features a nominal Zener voltage of 75 V with a 5% tolerance and a maximum power dissipation of 500 mW. The device operates within a junction temperature range of -65°C to +175°C, ensuring reliability in demanding environments. Key electrical characteristics include a maximum reverse leakage current of 100 nA at 76 V and a Zener impedance of 270 Ohms. The component is designed for through-hole or surface-mount applications requiring precise voltage regulation.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a single silicon Zener junction
• Features hermetically sealed glass axial-leaded construction for environmental protection
• Supports extended operating temperatures up to 175°C for harsh conditions

Single Zener Diodes Applications

• Voltage reference circuits in precision instrumentation
• Overvoltage protection in electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix BUR/TR against official Microchip documentation to confirm the exact package type and reel specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Confirm RoHS compliance status as indicated in the latest datasheet, noting that some variants may not be compliant. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Single Zener Diodes Selection Notes

Select this component when a 75 V Zener voltage is required in a compact surface-mount form factor. Consider the 500 mW power rating and 270 Ohm impedance for circuit design calculations. Evaluate the -65°C to +175°C temperature range against operational requirements. Compare with other 1N527x series variants if different voltage levels or package styles are needed.

Single Zener Diodes Part Context

This part belongs to the popular 1N5221 through 1N5281B series of 0.5 watt Zener Voltage Regulators. The series offers a wide selection of voltages from 2.4 to 200 volts with various tolerance options. Microsemi, now part of Microchip Technology, manufactures these devices to meet diverse voltage regulation needs in standard and military screening levels.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5271A and 1N5271B for similar performance in different packages. Verify pinout and thermal characteristics before substitution.