1N2804RB

Overview

The Microchip Technology 1N2804RB is a single Zener diode with a nominal reference voltage of 6.8 V and a maximum dynamic impedance of 0.2 Ω. It features a maximum power dissipation of 50 W and operates within a temperature range of -65°C to 175°C. The device has a reverse leakage current of 150 µA at 4.5 V and a forward voltage of 1.5 V at 10 A. It utilizes a TO-204AD (TO-3) through-hole package with tin/lead terminals.

Feature Summary

• Provides stable voltage regulation in the 3.9 V to 200 V range for high-power applications
• Capable of operating up to 50 W with adequate mounting and heat sinking
• Qualified per MIL-PRF-19500/114 standards for JAN, JANTX, and JANTXV levels

Applications

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

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheets. Confirm RoHS compliance status as the device may not meet current environmental regulations. Ensure proper handling procedures are followed due to the leaded terminal composition. Validate that the specific lot charge meets project qualification requirements before integration into final assemblies.

Selection Notes

Select this component when a 6.8 V Zener voltage with high power handling capability is required. The TO-204AD package suits applications needing direct chassis mounting for efficient heat dissipation. Consider the ±5% tolerance and low dynamic impedance for precise regulation needs. Evaluate thermal management solutions to support the 50 W maximum power dissipation rating effectively.

Part Context

This part belongs to the 1N2804B series of 50 Watt Zener diodes manufactured by Microchip Technology. The series includes JEDEC registered parts ranging from 1N2804B to 1N2846B. These components are designed for broad voltage regulation applications and are available in commercial versions alongside qualified military grades.

Replacement Considerations

The 1N2804B is listed as a parameter-equivalent substitute by Microchip Technology.