1N3324RB

Overview

The Microchip Technology 1N3324RB 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 30 V and a tolerance of ±5%. The device operates at a test current of 420 mA and features a maximum dynamic impedance of 3.0 Ω. It utilizes a DO-5 (DO-203AB) package with reverse polarity, where the cathode connects to the case.

Feature Summary

• Hermetically sealed welded metal and glass construction for durability
• Internal solder bond design ensuring robust electrical connections
• Reverse polarity configuration with cathode connected to the case
• Inherently radiation hard and non-sensitive to electrostatic discharge

Applications

• High power voltage regulation in demanding environments
• Military and aerospace electronic systems requiring rugged components
• Industrial equipment utilizing stud-mounted thermal management

Procurement Notes

Verify that the specific part number includes the 'R' suffix to confirm the reversed polarity configuration, as standard units feature an anode-to-case connection. Ensure the procurement documentation explicitly references the Microsemi or Microchip datasheet for the 1N3305–1N3350B series to validate the 50 W power rating and hermetic sealing specifications required for your application.

Selection Notes

Select this component when a 30 V regulation point is required within a high-power dissipation context up to 50 W. The reverse polarity option is critical for designs where the circuit ground must connect to the mounting stud. Verify that the system can accommodate the DO-5 package dimensions and the necessary hexagonal stud mounting hardware for proper heat sinking.

Part Context

This component belongs to the extensive family of 50 Watt Zener diodes manufactured by Microchip Technology's Scottsdale Division. The series covers a broad voltage range from 3.9 V to 200 V, offering standardized JEDEC registration numbers. These devices are designed for applications requiring high reliability and significant power handling capabilities in a stud-mountable form factor.

Replacement Considerations

Compatible substitutes include other parts within the 1N3305–1N3350B series or the 1N4549B–1N4556B series. Military qualified equivalents such as JAN, JANTX, or JANTXV prefixed versions may be used if higher screening levels are required.