1N2833RB

Overview

The Microchip Technology 1N2833RB is a silicon unidirectional Zener diode rated for 50 watts of power dissipation. It features a nominal Zener voltage (Vz) of 62 volts with a tolerance of ±5%. The device is housed in a TO-204AD (TO-3) through-hole package and offers a maximum reverse leakage current of 10 μA at 47.1 V. Key electrical characteristics include a maximum Zener impedance (Zzt) of 7 Ohms and a maximum forward voltage drop of 1.5 V at 10 A.

Feature Summary

• High power handling capability of 50 watts for robust voltage regulation
• Hermetically sealed construction suitable for demanding environments
• Low Zener impedance ensuring stable voltage reference under varying currents

Applications

• High-power voltage regulation circuits
• Overvoltage protection systems
• Reference voltage sources in industrial equipment

Procurement Notes

Verify the specific suffix 'RB' to confirm the ±5% tolerance variant, as other suffixes indicate different tolerances or compliance statuses. Ensure the procurement source provides official datasheets from Microchip Technology or authorized distributors to guarantee authenticity. Confirm that the TO-204AD package dimensions match your PCB footprint requirements before finalizing orders.

Selection Notes

Select this component when a 62V Zener voltage with high power dissipation is required. The ±5% tolerance makes it suitable for applications where precise voltage clamping is necessary but extreme precision is not critical. Consider the TO-3 package size and thermal management needs, as the 50W rating requires adequate heat sinking for continuous operation.

Part Context

The 1N2833 series belongs to Microchip's line of 50-watt Zener diodes, designed for high-power applications. These diodes are known for their reliability and hermetic sealing, making them suitable for aerospace and military-grade electronics. The 1N2833RB specifically denotes the version with a tighter ±5% tolerance compared to standard variants.

Replacement Considerations

Direct substitutes may include other 50W, 62V Zener diodes in TO-3 packages from manufacturers like Central Semiconductor or ON Semiconductor, provided they meet the same electrical specifications and pinout compatibility.