1N2986A

Overview

The Microchip Technology 1N2986A is a high-power Zener diode designed for robust voltage regulation applications. It features a nominal Zener voltage of 24 V with a tolerance of ±5%. The device supports a maximum power dissipation of 10 W and operates within an extended temperature range from -65°C to +175°C. Packaged in the DO-213AA (DO-4) base-mount configuration, it offers low reverse leakage current of 10 µA at 18.2 V and a maximum Zener impedance of 5 Ohms. This component utilizes through-hole mounting for secure installation in demanding environments.

Feature Summary

• High power handling capability with 10 W dissipation rating
• Extended operating temperature range suitable for harsh conditions
• Base-mount construction for efficient thermal management
• Tight voltage tolerance ensuring stable regulation performance

Applications

• Industrial power supply voltage regulation
• High-temperature electronic circuit protection
• Heavy-duty reference voltage generation

Procurement Notes

Verify the specific package variant and manufacturing date code upon order confirmation. Confirm compliance requirements such as RoHS status, as this product may not meet all environmental directives. Ensure thermal design accounts for the 10 W dissipation rating. Check lead times as production cycles can vary significantly. Validate that the base-mount interface matches your mechanical assembly constraints before finalizing procurement.

Selection Notes

Select this component when high power dissipation and wide temperature operation are required. The 24 V nominal voltage suits specific regulation needs. Consider the physical size of the DO-213AA package for board layout. Evaluate thermal resistance paths due to the high power rating. Compare against lower power alternatives if system constraints allow reduced dissipation capabilities.

Part Context

The 1N2986A belongs to Microchip's legacy high-power Zener diode lineup. It serves as a rugged solution for industrial and automotive applications requiring reliable voltage clamping. The DO-4 package provides mechanical stability and effective heat sinking. This series is known for durability in extreme thermal environments.

Replacement Considerations

Consult official substitution guides for compatible equivalents. Verify pinout compatibility and thermal characteristics when considering alternative manufacturers. Ensure replacement parts meet the same 10 W power and ±5% voltage tolerance specifications.