1N3323BE3

Single Zener Diodes Overview

The Microchip Technology 1N3323BE3 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 and a tolerance of ±5%. The device features a hermetically sealed DO-5 (DO-203AB) package with an internal solder bond construction, designed for stud mounting. It operates within a junction and storage temperature range of -65°C to +175°C, with a maximum DC power dissipation of 50 watts at a case temperature below 75°C.

Single Zener Diodes Feature Summary

• Hermetically sealed welded metal and glass construction with internal solder bond
• Standard polarity configuration connects the anode directly to the hexagonal base case
• Inherently radiation hard design suitable for demanding environments
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• High power voltage regulation in industrial systems
• Protection circuits requiring robust thermal performance
• Military and aerospace applications utilizing radiation-hardened components

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required electrical tolerance and polarity configuration. Confirm that the procurement documentation explicitly references the JEDEC registered part number 1N3323B or its equivalent military qualification prefix if applicable. Ensure the component meets the specified hermetic sealing standards and package dimensions for the intended mounting hardware.

Single Zener Diodes Selection Notes

Select this component when a 27 V regulation point is required with high power handling capabilities. The DO-5 stud mount package necessitates appropriate heat sinking infrastructure to maintain the case temperature below 75°C for full 50 W operation. Consider the standard anode-to-case polarity; use the R suffix variant if cathode-to-case connection is required by the circuit layout.

Single Zener Diodes Part Context

This component belongs to the 1N3305 through 1N3350B series of 50 Watt Zener diodes manufactured by Microsemi's Scottsdale Division. These devices are available in various voltage ratings ranging from 3.9 V to 200 V. The series offers multiple screening levels, including JAN, JANTX, and JANTXV qualifications, to meet specific reliability requirements for defense and space applications.

Single Zener Diodes Replacement Considerations

Direct substitutes include other parts within the 1N3305–1N3350B series or the 1N4549B–1N4556B series provided they match the 27 V nominal voltage and 50 W power rating. Verify mechanical compatibility with the DO-5 (DO-203AB) hexagonal stud package and ensure thermal resistance characteristics align with the system's cooling capacity.