1N2815RB

Overview

The Microchip Technology 1N2815RB is a silicon unidirectional Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 17 V with a tight tolerance of ±5%. The device supports a maximum power dissipation of 50 W and operates within a junction temperature range of -65°C to +175°C. Key electrical characteristics include a maximum impedance of 1.8 Ohms and a reverse leakage current of 10 µA at 13 V. The component is housed in a TO-204AD (TO-3) through-hole package, suitable for high-power industrial environments.

Feature Summary

• High power handling capability with 50 W dissipation rating
• Wide operating temperature range extending to +175°C
• Precision voltage regulation with ±5% tolerance
• Robust hermetic sealed construction in TO-204AD package

Applications

• High-power voltage regulation circuits
• Industrial equipment protection
• Power supply reference standards

Procurement Notes

Verify the specific suffix RB indicates leaded construction, as this variant is RoHS non-compliant. Confirm package authenticity matches TO-204AD specifications. Ensure supplier documentation aligns with Microchip Technology manufacturing standards for critical high-power applications.

Selection Notes

Select this component when high thermal stability and precise 17 V regulation are required. The TO-204AD package necessitates appropriate heatsinking strategies due to the 50 W power rating. Consider the leaded construction requirements if environmental sealing or specific mounting constraints apply to the design.

Part Context

This part belongs to the 1N2815 series of silicon Zener diodes manufactured by Microchip Technology. The series includes variants such as 1N2815A with different tolerances. The 1N2815RB specifically denotes the 5% tolerance version in the TO-204AD package, distinguishing it from lower precision alternatives.

Replacement Considerations

Direct substitutes include other manufacturers' 1N2815RB equivalents or 1N2815A variants if ±10% tolerance is acceptable. Verify pinout compatibility and thermal resistance values before substitution.