1N2830RB

Overview

The 1N2830RB is a high-power Zener diode manufactured by Microchip Technology under the Microsemi Commercial Components Group. It features a 50 V nominal Zener voltage with a ±5% tolerance and a 50 W power dissipation rating. The device operates within a temperature range of -65°C to 175°C and utilizes a TO-204AD (TO-3) through-hole package. Key electrical specifications include a maximum reverse leakage current of 10 μA at 38 V and a dynamic impedance of 5 Ω.

Feature Summary

• High power handling capability rated at 50 watts for robust voltage regulation in demanding environments
• Wide operating temperature range extending up to 175°C for thermal stability
• Precision voltage tolerance of ±5% ensuring accurate reference levels
• Through-hole mounting via TO-204AD package for secure mechanical attachment

Applications

• High-power voltage regulation circuits
• Overvoltage protection systems
• Industrial power supply references

Procurement Notes

Verify the manufacturer marking matches Microsemi or Microchip Technology specifications. Confirm the package type is TO-204AD (TO-3) and the suffix RB indicates the specific tolerance grade. Ensure the component meets the required 50 W power rating and 50 V Zener voltage for your design. Check for authenticity markers on the lead frame and body to prevent counterfeit parts.

Selection Notes

Select this component when a 50 V regulated output is required with significant power dissipation needs. The TO-204AD package supports higher current loads compared to smaller surface-mount alternatives. Consider the thermal management requirements due to the 50 W rating. Verify that the ±5% tolerance aligns with the circuit's precision requirements.

Part Context

This part belongs to the JEDEC registered 1N2804 through 1N2846B series of high-power Zener diodes. These components are designed for applications requiring stable voltage references under high power conditions. The series is widely used in industrial and military-grade electronics where reliability and thermal performance are critical.

Replacement Considerations

Compatible substitutes include other parts from the 1N28xxB series with matching 50 V and 50 W ratings, such as 1N2830. Verify pinout compatibility and thermal characteristics before substitution.