1N2814B

Overview

The Microchip Technology 1N2814B is a high-power Zener diode designed for robust voltage regulation applications. It features a nominal Zener voltage of 16 V with a tolerance of ±5%. The device supports a maximum power dissipation of 50 W and operates within an extended temperature range from -65°C to +175°C. Packaged in the TO-204AD (TO-3) through-hole format, it exhibits a maximum impedance of 1.6 Ohms at the rated current. This component is suitable for demanding environments requiring stable DC voltage reference or protection.

Feature Summary

• Provides stable voltage regulation across a broad range of high-power industrial applications
• Capable of handling significant power dissipation up to 50 W with adequate thermal management
• Engineered for reliable operation in extreme environmental conditions spanning wide temperature ranges

Applications

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

Procurement Notes

Verify the specific qualification level required for your application, as this series includes JAN, JANTX, and JANTXV variants. Confirm that the TO-204AD package dimensions match your board layout constraints. Ensure thermal design accounts for the 50 W power rating under worst-case operating conditions. Check for any recent product change notifications regarding assembly sites or labeling updates before finalizing procurement.

Selection Notes

Select this component when a 16 V regulation point is needed with high surge capability. Compare the 1.6 Ohm impedance against load requirements to ensure stability. Consider the TO-3 package size relative to available mounting space. Evaluate thermal resistance paths to maintain junction temperatures within the specified limits during continuous operation.

Part Context

This part belongs to the 1N28xxB series of 50 Watt Zener diodes manufactured by Microchip Technology. These devices are registered with JEDEC and offer voltage values ranging from 3.9 V to 200 V. The series is widely used in military and aerospace sectors due to its rugged construction and consistent performance characteristics over time and temperature variations.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the available documentation. Verify compatibility with equivalent 50 W Zener diodes from other manufacturers based on voltage, power, and package specifications.