1N5270A

Single Zener Diodes Overview

The Microchip Technology 1N5270A is a 500 mW glass axial-lead Zener diode housed in a DO-35 (DO-204AH) package. It provides a nominal Zener voltage of 91 V with a ±10% tolerance, indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 66 µA at 69 V. Its electrical characteristics include a Zener impedance of 2300 Ohms at a test current of 1.4 mA and a positive voltage temperature coefficient of +0.099 %/°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
• Constructed with a hermetically sealed glass axial-lead package

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the datasheet identifies Microsemi while other records list Microchip Technology. Confirm that the component meets RoHS compliance requirements if necessary, noting that standard versions may not be compliant. Ensure the ordering part number includes the correct suffix to guarantee the specified 10% voltage tolerance and electrical parameters.

Single Zener Diodes Selection Notes

Select this component when a 91 V Zener voltage is required in a through-hole axial-lead configuration. The 500 mW power dissipation rating supports moderate current loads. Consider the positive temperature coefficient for thermal stability analysis. Verify that the package dimensions align with the PCB layout constraints for the DO-35 form factor.

Single Zener Diodes Part Context

This component belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection of voltages from 2.4 V to 200 V. The 1N5270A specifically addresses higher voltage regulation needs within this standardized JEDEC registered lineup, utilizing a robust glass body construction.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5270 without the A suffix for 20% tolerance or the 1N5270B for 5% tolerance. Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package.