1N2817B

Overview

The Microchip Technology 1N2817B is a silicon Zener diode designed for voltage regulation applications. It belongs to the 50-watt series of Zener diodes, offering robust power handling capabilities in a hermetically sealed metal case. This component provides stable reference voltages and surge protection in electronic circuits. The device is manufactured to meet stringent quality standards, ensuring reliability in demanding environments. Its construction supports high-power dissipation while maintaining precise voltage characteristics across operating conditions.

Feature Summary

• Hermetically sealed metal case construction for environmental protection
• Designed for high-power voltage regulation applications
• Silicon Zener technology for stable voltage reference

Applications

• Voltage regulation in power supplies
• Surge protection circuits
• Reference voltage generation

Procurement Notes

Verify the specific manufacturer source when ordering, as this part number may be produced by multiple entities including Microsemi or Central Semiconductor under license. Confirm package type and tolerance requirements with the supplier. Ensure documentation matches the required military or commercial grade specifications if applicable. Check for suffix variations that may indicate plating options or tolerance levels before finalizing procurement.

Selection Notes

Select this component when a 50-watt Zener diode with hermetic sealing is required. Consider the voltage tolerance and temperature coefficient needs for the specific application. Evaluate thermal management requirements due to the high power rating. Compare alternative manufacturers if supply chain constraints exist, ensuring equivalent electrical and mechanical specifications are met.

Part Context

This part is part of the broader 1N28xx series of 50-watt Zener diodes. These components are commonly used in industrial and aerospace applications where reliability is critical. The series offers various voltage options within the same package format, allowing for design flexibility. Hermetic sealing distinguishes these parts from standard commercial equivalents, making them suitable for harsh environments.

Replacement Considerations

Equivalent parts include 1N2817A and 1N2817C depending on tolerance requirements. Verify compatibility with existing circuit designs when substituting. Cross-reference with Central Semiconductor CZ5357B or similar variants if sourcing from different manufacturers. Ensure pinout and thermal characteristics match the original design intent.