1N3338A

Single Zener Diodes Overview

The 1N3338A 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 75 V at a test current of 170 mA. The device features a maximum dynamic impedance of 9.0 Ohms and a maximum reverse current of 10 µA. It operates within a junction and storage temperature range of -65°C to +175°C, dissipating up to 50 watts at a case temperature 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
• Standard polarity configuration with anode connected to the case
• Inherently radiation hard characteristics suitable for harsh environments

Single Zener Diodes Applications

• High power voltage regulation circuits
• Overvoltage protection systems
• Military and aerospace electronic assemblies
• Industrial equipment requiring rugged components

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements when ordering, as the 'A' designation indicates a standard tolerance level distinct from the 'B' variant. Confirm that the application supports stud mounting due to the DO-5 package style. Ensure thermal management solutions are adequate for the specified 50-watt dissipation rating under operating conditions.

Single Zener Diodes Selection Notes

Select this component for applications demanding high power handling and radiation hardness. The 75 V nominal rating fits specific regulation needs within the broader series range. Consider the thermal resistance specifications when designing heat sinking strategies to maintain junction temperatures within safe operational limits during continuous operation.

Single Zener Diodes Part Context

This part belongs to the Microsemi Scottsdale Division 1N3305 through 1N3350B series of 50 Watt Zener diodes. These devices are designed for high-reliability applications where robust voltage regulation is critical. The series offers a broad selection of voltages ranging from 3.9 V to 200 V in a standardized industrial package format.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 50 W Zener diodes with matching 75 V ratings and DO-5 packaging. Verify polarity orientation, as standard units feature an anode-to-case connection. Thermal performance and impedance characteristics should be compared against existing designs to ensure compatibility.