1N3323B

Single Zener Diodes Overview

The Microchip Technology 1N3323B is a high-power 50 W Zener diode from the JEDEC registered 1N3305 through 1N3350B series. It provides voltage regulation with a nominal Zener voltage of 27 V at a test current of 460 mA. The device features a maximum dynamic impedance of 2.8 Ohms and a maximum reverse current of 10 µA. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 50 watts when mounted on a heat sink below 75°C.

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
• Low thermal resistance facilitating efficient heat dissipation

Single Zener Diodes Applications

• High power voltage regulation circuits
• Industrial control systems requiring radiation hardness
• Military and aerospace electronic assemblies

Single Zener Diodes Procurement Notes

Verify the specific part number against official Microchip or Microsemi documentation to confirm polarity configuration, as the 'R' suffix indicates reversed polarity (cathode to case). Ensure that mounting hardware and thermal interface materials are compatible with the DO-5 package requirements for proper heat sinking. Confirm qualification levels if military screening is required.

Single Zener Diodes Selection Notes

Select this component for applications demanding high power handling and ruggedness. The 50 W rating requires adequate heat sinking to maintain junction temperatures within limits. Consider the ±5% tolerance indicated by the 'B' suffix for precision regulation needs. Evaluate the operating temperature range to ensure compatibility with the intended environmental conditions.

Single Zener Diodes Part Context

This component belongs to the 1N3305 through 1N3350B series of high-power Zener diodes manufactured by Microchip Technology's Scottsdale Division. These devices are designed for robust voltage regulation in demanding industrial and military applications. The series offers a wide range of voltage options within a standardized hermetically sealed package.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 50 W Zener diodes in the DO-5 package with similar voltage ratings. Verify thermal resistance and mechanical dimensions before substitution. Military qualified versions may require specific prefixes such as JAN or JANTX.