1N2832A

Overview

The Microchip Technology 1N2832A is a high-power Zener diode designed for robust voltage regulation in demanding environments. It features a nominal Zener voltage of 56 V with a tolerance of ±5% and a maximum power dissipation of 50 W. The device utilizes a TO-204AD (TO-3) through-hole package, supporting an operating temperature range from -65°C to 175°C. Key electrical characteristics include a reverse leakage current of 10 µA at 42.6 V, a forward voltage of 1.5 V at 10 A, and a maximum impedance of 6 Ohms. This component is manufactured by Microchip Technology and remains in active production.

Feature Summary

• Provides stable voltage regulation with a 50 W power handling capability
• Engineered for extended thermal operation up to 175°C
• Utilizes a durable TO-204AD through-hole mounting style

Applications

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

Procurement Notes

Verify the specific suffix designation when ordering, as variations such as 1N2832B or 1N2832RB may exist within the same family. Confirm RoHS compliance status directly with the manufacturer, as historical data indicates non-compliance for certain variants. Ensure the required package type matches the design constraints before finalizing procurement. Cross-reference datasheets for precise electrical tolerances relevant to the specific batch.

Selection Notes

Select this component for applications requiring high power dissipation and wide temperature stability. The TO-204AD package necessitates appropriate heatsinking and mechanical mounting provisions. Evaluate the 56 V Zener voltage against circuit requirements to ensure proper regulation. Consider the ±5% tolerance for precision applications. Verify that the 10 µA leakage current meets system isolation standards.

Part Context

The 1N2832A belongs to the standard 1N28xx series of high-power Zener diodes produced by Microchip Technology. This series is characterized by its ability to handle significant power loads in rugged conditions. The TO-204AD package is a legacy form factor widely used in industrial and military-grade electronics where reliability under extreme thermal stress is critical.

Replacement Considerations

The 1N2832RB is documented as a parameter-equivalent substitute available from Microchip Technology. Verify pinout compatibility and thermal resistance specifications when substituting.