1N3339A

Single Zener Diodes Overview

The Microchip Technology 1N3339A is a high-power 50 W Zener diode from the 1N3305 through 1N3350B series. It provides voltage regulation with a nominal Zener voltage of 82 V at a test current of 150 mA. The device features a maximum dynamic impedance of 11 Ohms and a maximum reverse current of 10 µA. It operates within a junction temperature range of -65°C to +175°C and utilizes a DO-5 (DO-203AB) hexagonal stud package.

Single Zener Diodes Feature Summary

• Hermetically sealed welded metal and glass construction for durability
• Internal solder bond design ensuring structural integrity
• 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
• Military aerospace systems requiring radiation hardness
• Industrial equipment needing robust thermal performance

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements, as the 'A' designation indicates a +/- 10% tolerance on the Zener voltage. Confirm that the standard anode-to-case polarity aligns with your circuit design, or specify the 'R' suffix if reversed polarity is required. Ensure mounting hardware accommodates the 11/16 inch hexagonal stud with 1/4-28 threads.

Single Zener Diodes Selection Notes

Select this component when applications demand high power dissipation capabilities up to 50 watts. The wide operating temperature range supports extreme environmental conditions. Consider the low thermal resistance for efficient heat sinking. Verify that the 82 V breakdown voltage matches the system's regulation needs without exceeding maximum ratings.

Single Zener Diodes Part Context

This part belongs to the 1N3305 through 1N3350B series of 50 Watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. These devices are JEDEC registered and designed for demanding applications. The series covers a broad voltage range from 3.9 V to 200 V, offering versatile options for high-power regulation tasks across various industries.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N4549B through 1N4556B series which share identical electrical specifications and mechanical dimensions. Military qualified versions such as JAN, JANTX, and JANTXV prefixes are available for enhanced screening requirements.