1N3323RA

Single Zener Diodes Overview

The Microchip Technology 1N3323RA is a high-power 50 W Zener diode belonging to the 1N3305 through 1N3350B series. It provides voltage regulation with a nominal Zener voltage of 27.0 V at a test current of 460 mA. The device features a maximum dynamic impedance of 2.80 Ohms and a typical temperature coefficient of 0.085 %/°C. It utilizes a DO-5 (DO-203AB) package with an 11/16 inch hexagonal stud, offering a maximum thermal resistance of 2.0 °C/W from junction to base. The 'R' suffix indicates reversed polarity, connecting the cathode to the case.

Single Zener Diodes Feature Summary

• Hermetically sealed welded metal and glass construction for durability
• Internal solder bond design ensuring robust electrical connections
• Inherently radiation hard characteristics suitable for harsh environments
• ESD nonsensitive performance verified per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• High power voltage regulation in industrial systems
• Protection circuits requiring broad operating current ranges
• Applications demanding inherent radiation hardness

Single Zener Diodes Procurement Notes

Verify the specific part number against official Microsemi/Microchip datasheets to confirm the 1N3323RA designation and its reversed polarity configuration. Ensure that procurement channels provide documentation confirming the hermetic seal and military qualification levels if required by the application specifications.

Single Zener Diodes Selection Notes

Select this component when applications require high power dissipation capabilities up to 50 watts with adequate heat sinking. Consider the reversed polarity option where the cathode must be connected to the mounting surface. Evaluate the thermal resistance and derating curves to ensure the junction temperature remains within the specified -65°C to +175°C range during operation.

Single Zener Diodes Part Context

This component is part of the 1N3305 through 1N3350B series of 50 Watt Zener diodes manufactured by Microsemi's Scottsdale Division. These devices are designed for high-power regulation tasks and are available in various voltage ratings ranging from 3.9 V to 200 V. The series supports JAN, JANTX, and JANTXV military qualifications for specialized screening requirements.

Single Zener Diodes Replacement Considerations

Consult the manufacturer for surface mount equivalents or direct replacements within the 1N3305-1N3350B series. Verify compatibility regarding the DO-5 package dimensions and thermal characteristics before substituting.