1N2986RB

Overview

The Microchip Technology 1N2986RB is a 10 W Zener diode with a nominal voltage of 24 V and ±5% tolerance. It features a maximum impedance of 5 Ohms and operates within a temperature range of -65°C to 175°C. The device utilizes a DO-213AA (DO-4) stud-mount package, designed for high-power regulation applications requiring robust thermal management and stable voltage control in demanding environments.

Feature Summary

• High power dissipation capability of 10 Watts for robust voltage regulation
• Wide operating temperature range from -65°C to 175°C for extreme environment suitability
• Stud-mount construction in DO-213AA package for efficient heat sinking

Applications

• Military and aerospace power supply regulation systems
• Industrial equipment requiring high-reliability voltage reference
• Harsh environment electronic protection circuits

Procurement Notes

Verify the specific suffix 'RB' against the manufacturer's current datasheet to confirm exact qualification levels and testing standards. Ensure that the stud-mount installation method aligns with your thermal design requirements. Confirm compliance with relevant military specifications if the application demands JAN or JANTXV grades, as availability may vary by qualification level.

Selection Notes

Select this component when a 24 V Zener reference with 10 W power handling is required. The DO-213AA package necessitates direct chassis mounting for adequate thermal performance. Consider the 5 Ohm impedance and leakage characteristics for precision requirements. Verify that the ±5% tolerance meets the circuit's voltage regulation accuracy needs without additional trimming.

Part Context

This part belongs to the 1N2970B through 1N3015B series of 10 Watt Zener diodes manufactured by Microchip Technology. These components are JEDEC registered and often qualified per MIL-PRF-19500/124 standards. The series offers voltage regulation values ranging from 3.9 V to 200 V, providing a standardized solution for high-power voltage regulation across various industrial and defense applications.

Replacement Considerations

Compatible substitutes include other 1N29xx series Zener diodes with identical 24 V ratings and 10 W power dissipation. Ensure replacement parts maintain the DO-213AA package form factor for mechanical compatibility. Verify that alternative sources offer equivalent MIL-PRF-19500/124 qualification levels if military-grade reliability is required.