1N5271B/TR

Single Zener Diodes Overview

The Microchip Technology 1N5271B/TR is a 500 mW glass axial-lead Zener diode housed in a DO-35 package. It provides a nominal Zener voltage of 100 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 100 nA at 76 V. Its electrical characteristics include a test current of 1.3 mA, a maximum Zener impedance of 500 Ohms, and a positive voltage temperature coefficient of +0.110 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard per MicroNote 050
• Non-sensitive to electrostatic discharge (ESD)

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify that the part number includes the TR suffix to confirm tape and reel packaging compliance with EIA-296 standards. Ensure the B suffix is present to guarantee the required ±5% voltage tolerance. Confirm RoHS compliance status via the e3 designation if applicable to your manufacturing requirements. Cross-reference datasheet specifications against your specific thermal and electrical constraints before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 100 V regulation point is required with tight tolerance limits. The DO-35 through-hole package facilitates standard PCB mounting. Consider the positive temperature coefficient for thermal stability analysis in high-temperature environments. Verify that the 500 mW power dissipation rating meets the circuit's peak load requirements without exceeding derating curves.

Single Zener Diodes Part Context

This device belongs to the 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. The 1N5271B specifically targets the 100 V segment of this lineup, utilizing a hermetically sealed glass axial-lead construction suitable for demanding industrial and military-grade applications requiring reliable performance.

Single Zener Diodes Replacement Considerations

Microchip Technology 1N5271A

Single Zener Diodes FAQ

What does the 'TR' suffix indicate for this part?

The 'TR' suffix indicates that the device is supplied in a tape and reel format, adhering to standard EIA-296 specifications.

How is polarity identified on the 1N5271B?

Polarity is identified by a band on the glass body; the cathode is located at the banded end.