1N2820RB

Overview

The 1N2820RB is a 50W single Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 24V with a tolerance of ±5%. The device operates within a junction temperature range of -65°C to +175°C and exhibits a reverse leakage current of 10µA at 18.2V. Packaged in the TO-204AD (TO-3) through-hole format, it serves as a general-purpose voltage reference or regulator component.

Feature Summary

• High power dissipation capability of 50 watts for robust thermal performance
• Wide operating junction temperature range extending to 175°C
• Hermetically sealed construction in TO-204AD package

Applications

• General purpose voltage regulation circuits
• Voltage reference applications requiring high power handling
• Industrial equipment protection against overvoltage

Procurement Notes

Verify RoHS compliance status as sources indicate non-compliance or lead content. Confirm package variant matches TO-204AD requirements. Ensure supplier documentation aligns with Microchip Technology specifications for the 1N2820RB part number before procurement.

Selection Notes

Select this component when a 24V Zener voltage with 50W power rating is required. The TO-204AD package suits high-power through-hole mounting. Consider the wide temperature range for harsh environments. Verify tolerance needs against the standard ±5% specification.

Part Context

This part belongs to the 1N28xx series of 50W Zener diodes produced by Microchip Technology (formerly Microsemi). The series includes variants from 1N2804 to 1N2846B, offering various voltage ratings. The 1N2820RB specifically provides the 24V option within this high-power discrete semiconductor family.

Replacement Considerations

Compatible substitutes include other 24V 50W Zener diodes in TO-3 packages such as the 1N2820A. Verify pinout compatibility and thermal characteristics when cross-referencing with equivalent parts from other manufacturers.