1N2834RB

Overview

The Microchip Technology 1N2834RB is a high-power Zener diode designed for robust voltage regulation applications. It features a nominal Zener voltage of 75 V with a tolerance of ±5% and a maximum power dissipation of 50 W. The device operates within a wide temperature range from -65°C to +175°C and utilizes the TO-204AD (TO-3) through-hole package. Qualified per MIL-PRF-19500/114, this component supports JAN, JANTX, and JANTXV levels, ensuring reliability in demanding environments.

Feature Summary

• Provides stable voltage regulation across a broad spectrum of voltage values
• Capable of handling high power dissipation up to 50 Watts
• Qualified for military standards including JAN, JANTX, and JANTXV levels

Applications

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

Procurement Notes

Verify the specific qualification level (JAN, JANTX, or JANTXV) required for your application, as availability may vary by grade. Confirm that the TO-204AD (TO-3) through-hole mounting style aligns with your PCB design or chassis mounting requirements. Ensure adequate heat sinking is planned, as the 50 W power rating necessitates proper thermal management to maintain operation within the specified -65°C to +175°C temperature range.

Selection Notes

Select the 1N2834RB when a precise 75 V regulation point is needed with high surge capability. Consider the physical size of the TO-3 package compared to smaller surface-mount alternatives. Evaluate the thermal resistance of your mounting solution against the 50 W dissipation requirement. This component is suitable for designs requiring MIL-PRF-19500/114 compliance rather than commercial-grade equivalents.

Part Context

This part belongs to the 1N2804B through 1N2846B series of 50 Watt Zener diodes manufactured by Microchip Technology. These devices are JEDEC registered and offer a wide range of voltage options from 3.9 V to 200 V. The series is specifically engineered for high-reliability applications where standard commercial diodes may fail under extreme electrical or thermal stress conditions.

Replacement Considerations

Direct substitutes must match the 75 V nominal voltage, 50 W power rating, and TO-204AD package. Verify if the replacement meets the same MIL-PRF-19500/114 qualification levels if military-grade reliability is required. Cross-reference with other manufacturers offering equivalent high-power Zener diodes in the TO-3 case style.