1N2832B

Overview

The Microchip Technology 1N2832B is a single silicon Zener diode designed for voltage regulation applications. 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 metal package, supporting an operating temperature range from -65°C to 175°C. Key electrical characteristics include a maximum Zener impedance of 6 Ohms, a forward voltage of 1.5 V at 10 A, and a reverse leakage current of 10 µA at 42.6 V.

Feature Summary

• High-power voltage regulation capability with 50 W dissipation rating
• Robust metal TO-204AD (TO-3) through-hole construction
• Extended thermal stability suitable for harsh environments

Applications

• High-power voltage reference circuits
• Overvoltage protection in industrial systems
• Power supply regulation modules

Procurement Notes

Verify the specific manufacturing origin and assembly site details against the latest Product Change Notification (PCN) documentation prior to procurement. Confirm RoHS compliance status, as this component may not meet current environmental directives. Ensure that the TO-204AD package dimensions match the target PCB or chassis mounting requirements. Validate that the supplier provides official datasheets corresponding to the exact part number revision to avoid functional mismatches.

Selection Notes

Select the 1N2832B when a high-power, 56 V Zener diode is required in a ruggedized metal package. This component is appropriate for designs needing significant heat dissipation capabilities and wide temperature operation. Consider the physical size constraints of the TO-3 housing during layout. Evaluate if lower power alternatives suffice for less demanding thermal environments to optimize board space and cost efficiency.

Part Context

The 1N2832B belongs to the standard 1N28xx series of high-power Zener diodes manufactured by Microchip Technology. This series is characterized by its use in robust, through-hole metal packages like the TO-204AD. These components are typically employed in legacy or high-reliability industrial applications where established form factors and high power handling are prioritized over miniaturization.

Replacement Considerations

The 1N2832RB is documented as a parameter-equivalent substitute. Verify mechanical compatibility and electrical specifications before substitution.