1N2816RB

Overview

The 1N2816RB is a 50W Zener diode manufactured by Microchip Technology, housed in the TO-204AD (TO-3) through-hole package. It features a nominal Zener voltage of 18V with a tolerance of ±5%. Key electrical parameters include a maximum dynamic impedance of 2 Ohms and a reverse leakage current of 10µA at 13.7V. The device supports a maximum forward voltage of 1.5V.

Feature Summary

• High power dissipation capability of 50 Watts for robust voltage regulation
• Through-hole TO-204AD (TO-3) packaging for secure mounting
• Tight voltage tolerance of ±5% for precise reference applications

Applications

• High-power voltage regulation circuits
• Overvoltage protection systems
• Precision voltage reference sources

Procurement Notes

Verify component authenticity and datasheet alignment when sourcing. Note that some distributors list this part as discontinued or non-RoHS compliant. Confirm availability status and alternative options directly with suppliers before procurement to ensure compatibility with project requirements.

Selection Notes

Select this component for applications requiring high power handling and stable voltage regulation. Ensure the thermal management design accommodates the 50W dissipation rating. Verify that the TO-204AD package fits the mechanical constraints of the target assembly.

Part Context

This component belongs to the family of high-power Zener diodes designed for industrial and commercial electronics. It provides reliable voltage clamping and regulation in demanding environments where standard low-power diodes would fail due to thermal limitations.

Replacement Considerations

Check for direct substitutes from Microchip or other manufacturers offering identical 50W TO-204AD specifications. Verify pinout compatibility and thermal characteristics before substitution.