1N5239B

Single Zener Diodes Overview

The Microchip Technology 1N5239B is a single silicon Zener diode housed in a DO-35 glass axial-lead package. It provides a nominal Zener voltage of 9.1 V with a maximum dynamic impedance of 10 Ohms at a test current of 20 mA. The device supports a maximum power dissipation of 500 mW and maintains a voltage tolerance of ±5%. Operating temperatures range from -65°C to +175°C, with a maximum reverse leakage current of 3 µA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole integration
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks

Single Zener Diodes Procurement Notes

Verify the manufacturer origin, as the component is produced by multiple entities including Microsemi and Microchip Technology. Confirm the specific suffix requirements for tolerance or packaging if applicable. Ensure the ordering part number matches the required JEDEC registration and electrical characteristics defined in the official datasheet before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 9.1 V reference is needed within a 5% tolerance band. The DO-35 package suits applications requiring axial leads and moderate power handling up to 500 mW. Consider the positive temperature coefficient of approximately 0.068 %/°C for thermal stability requirements in the design phase.

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 to 200 V in standard DO-35 packages. The 'B' suffix specifically denotes a tighter ±5% voltage tolerance compared to the standard A suffix.

Single Zener Diodes Replacement Considerations

Consult the official datasheet for equivalent parts within the same series or cross-reference with other manufacturers offering identical JEDEC specifications and package dimensions.