1N3330B

Single Zener Diodes Overview

The Microchip Technology 1N3330B 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 47 V at a test current of 270 mA. The device features a maximum dynamic impedance of 5.0 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) package with an internal solder bond construction.

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

Single Zener Diodes Applications

• High power voltage regulation circuits
• Military and aerospace electronic systems
• Harsh environment power supplies

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as historical production involves Microsemi and Microchip Technology. Confirm the exact revision status and qualification level required for your application, such as standard commercial or military grades like JAN, JANTX, or JANTXV. Ensure proper heat sinking is planned, as the 50 W rating depends on maintaining the case temperature below 75°C.

Single Zener Diodes Selection Notes

Select this component when a robust 50 W Zener diode is needed for high-current regulation. The DO-5 stud mount package facilitates direct thermal transfer to heatsinks. Consider the reverse polarity option by adding an 'R' suffix if the cathode must connect to the case. Verify that the system can accommodate the physical dimensions and weight of the hexagonal stud package.

Single Zener Diodes Part Context

This part belongs to the 1N3305 through 1N3350B series of 50 Watt Zener diodes. These devices are designed for applications requiring high power dissipation and wide voltage ranges from 3.9 V to 200 V. The series is known for its ruggedness and suitability for demanding industrial and defense environments where reliability is critical.

Single Zener Diodes Replacement Considerations

Consult factory documentation for surface mount equivalents. Other parts in the 1N33xxB series may serve as alternatives if voltage ratings match. Military qualified versions include prefixes such as JAN, JANTX, or JANTXV.