1N2806RB

Overview

The 1N2806RB is a high-power Zener diode manufactured by Microchip Technology. It features an 8.2 V nominal Zener voltage with a ±10% tolerance and a maximum power dissipation of 50 W. The device utilizes a TO-204AD (TO-3) through-hole package. Key electrical characteristics include a maximum Zener impedance of 0.4 Ohms, a reverse leakage current of 50 µA at 5.4 V, and a forward voltage of 1.5 V at 10 A. The operating temperature range spans from -65°C to +175°C.

Feature Summary

• Provides stable voltage regulation within the 3.9 V to 200 V series range
• Capable of handling high power dissipation up to 50 W
• Qualified for JAN, JANTX, and JANTXV levels per MIL-PRF-19500/114

Applications

• High-power voltage regulation circuits
• Military and aerospace electronic systems
• Industrial equipment requiring robust overvoltage protection

Procurement Notes

Verify the specific suffix RB against official Microchip documentation to confirm qualification level and exact parameter tolerances. Ensure the procurement channel provides valid traceability for military-grade components. Confirm that the TO-204AD package dimensions match the design requirements before finalizing orders.

Selection Notes

Select this component when a 50 W Zener diode with an 8.2 V breakdown is required for high-reliability applications. Consider the TO-3 package size for thermal management capabilities. Verify that the ±10% tolerance meets the circuit's precision requirements and that the wide operating temperature range suits the environmental conditions.

Part Context

This part belongs to the 1N2804B through 1N2846B series of 50 Watt Zener diodes registered with JEDEC. These devices are designed for demanding environments and offer reliable performance in critical power management roles. The series supports various voltage values to accommodate diverse regulatory needs in professional electronics.

Replacement Considerations

Check for direct equivalents within the 1N2804B-1N2846B series or compatible MIL-PRF-19500/114 qualified parts. Ensure any substitute matches the 50 W power rating, TO-204AD footprint, and 8.2 V Zener voltage specifications.