1N3325B

Single Zener Diodes Overview

The Microchip Technology 1N3325B 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 33 V at a test current of 380 mA. The device features a maximum dynamic impedance of 3.2 Ohms and a reverse current of 10 µA. It operates within a junction temperature range of -65°C to +175°C, utilizing 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
• Industrial control applications requiring robust components

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as the datasheet originates from Microsemi Scottsdale Division while the brand is listed as Microchip Technology. Confirm that the component meets all required military qualifications if applicable, such as JAN or JANTXV standards per MIL-PRF-19500/358. Ensure proper heat sinking is available to support the 50 W power dissipation rating.

Single Zener Diodes Selection Notes

Select this component when a 33 V regulation point is required in high power environments. The DO-5 stud mount package facilitates direct thermal transfer to heatsinks. Consider the reverse polarity option by adding an 'R' suffix if cathode-to-case connection is necessary. Verify tolerance requirements, as the 'B' suffix indicates a standard 5% voltage tolerance.

Single Zener Diodes Part Context

This part belongs to the 1N3305 through 1N3350B series of 50 Watt Zener diodes. These devices are designed for broad voltage ranges from 3.9 V to 200 V. They are commonly used in demanding applications where high power handling and reliability are critical, often featuring military screening options.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 50 W Zener diodes with a 33 V nominal voltage and compatible DO-5 packaging. Cross-reference with the 1N4549 through 1N4556B series if alternative voltage ratings within the same power class are acceptable.