1N2846A

Overview

The Microchip Technology 1N2846A is a high-power Zener diode designed for voltage regulation and protection applications. It features a nominal breakdown voltage of 200 V with a tolerance of ±10%. The device is rated for a maximum power dissipation of 50 W at case temperature, ensuring robust performance in demanding environments. It operates within a specified current range, typically up to 65 mA for testing purposes, and exhibits a dynamic impedance of 100 Ohms. The component utilizes a Through-Hole TO-204AD (TO-3) package, providing efficient thermal management and mechanical stability for industrial and commercial circuit designs requiring reliable overvoltage suppression.

Feature Summary

• High power handling capability with 50 W rating for robust voltage regulation
• Precision voltage control with 200 V nominal breakdown and tight tolerance
• Durable through-hole construction suitable for high-current applications

Applications

• Overvoltage protection circuits
• Voltage reference standards
• Power supply regulation systems

Procurement Notes

Verify the manufacturer marking matches Microchip Technology specifications. Confirm the package type is TO-204AD (TO-3). Check datasheet revisions for updated electrical characteristics. Ensure compatibility with existing thermal management solutions. Validate authenticity through authorized distribution channels.

Selection Notes

Select this component when high power dissipation is required alongside precise 200 V regulation. Consider the TO-3 package size for mounting constraints. Evaluate thermal resistance requirements for the specific application environment. Compare dynamic impedance values against circuit sensitivity needs. Ensure input voltage ranges do not exceed the diode's maximum ratings.

Part Context

This part belongs to the standard Zener diode family used for discrete voltage regulation. It serves as a fundamental component in power electronics for clamping voltages. The TO-3 package indicates its suitability for higher power levels compared to smaller surface-mount alternatives. It is commonly found in industrial equipment and power supply designs.

Replacement Considerations

Equivalent parts include other 200 V, 50 W Zener diodes in TO-3 packages from manufacturers like Semitronics or Microsemi. Verify pinout compatibility and thermal characteristics before substitution. Ensure replacement components meet the same voltage tolerance and power dissipation ratings.