1N2824A

Overview

The 1N2824A is a silicon Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 33V with a tolerance of ±10%. The device is rated for a maximum power dissipation of 50W and supports a continuous current of 380mA. It utilizes an internal solder bond construction within a hermetically sealed metal flange mount package (TO-204AD/TO-3). The component operates reliably across a temperature range from -65°C to +175°C.

Feature Summary

• Hermetically sealed welded construction for environmental protection
• Internal solder bond design for mechanical stability
• High power handling capability suitable for robust regulation tasks

Applications

• Voltage reference circuits requiring high stability
• Power supply overvoltage protection systems
• Industrial equipment operating in extreme temperatures

Procurement Notes

Verify the manufacturer designation carefully, as Microsemi was acquired by Microchip Technology. Confirm that the specific part number suffix matches the required tolerance and package variant. Ensure compliance with RoHS directives if applicable, as some legacy variants may not be compliant. Cross-reference datasheets to confirm electrical parameters match system requirements before procurement.

Selection Notes

Select this component when a 33V Zener voltage with 50W power rating is required. The TO-204AD package necessitates appropriate heat sinking solutions due to high power dissipation. Consider the ±10% tolerance for precision applications. Verify thermal management capabilities to maintain operation within the specified -65°C to +175°C range under load conditions.

Part Context

This component belongs to the JEDEC registered 1N2804 through 1N2846B series of 50-watt Zener diodes. These devices are characterized by their rugged metal case construction and high power handling. They are commonly used in military and aerospace applications where reliability and hermetic sealing are critical requirements for long-term performance.

Replacement Considerations

Compatible substitutes include other 33V 50W Zener diodes in TO-204AD packages from qualified manufacturers. Ensure replacement parts meet the same hermetic sealing and internal solder bond specifications. Verify thermal resistance and mounting hole dimensions for mechanical compatibility.