2N6280

Overview

The Microchip Technology 2N6280 is a high-power NPN Darlington transistor designed for robust switching applications. It features a collector-emitter voltage (VCEO) of 100 V and a continuous collector current rating of 20 A. The device operates within a junction temperature range of -65 °C to +200 °C, offering extended thermal capability compared to standard silicon devices. With a maximum power dissipation of 175 W in a TO-204AA-2 (TO-3) package, it provides significant current gain with a minimum hFE of 8. The component utilizes through-hole mounting for secure mechanical attachment in industrial environments.

Feature Summary

• High thermal stability enabling operation up to 200 °C junction temperature
• High current handling capability with 20 A continuous collector current
• Robust packaging suitable for high-power dissipation requirements

Applications

• Industrial motor control systems
• High-power relay drivers
• Heavy-duty switching circuits

Procurement Notes

Verify the specific manufacturer source, as this part number is historically associated with multiple vendors including Motorola and onsemi. Confirm that the Microchip Technology variant meets all required electrical specifications for your design. Ensure the TO-204AA-2 package dimensions align with your thermal management and board layout constraints before finalizing procurement.

Selection Notes

Select this component when high current switching at moderate voltages is required alongside extreme temperature resilience. The high operating temperature limit makes it suitable for harsh industrial environments where standard transistors might fail. Consider the 175 W power dissipation rating and ensure adequate heatsinking is implemented to maintain safe junction temperatures during continuous operation.

Part Context

The 2N6280 belongs to the legacy NPN Darlington transistor family, originally standardized by JEDEC. While historically produced by various semiconductor manufacturers, Microchip Technology continues to supply this ruggedized device. It serves as a direct replacement for older designs requiring high gain and high current capacity in a durable metal can package.

Replacement Considerations

Direct substitutes include the 2N6284 from Microchip Technology and equivalent parts from other manufacturers such as onsemi or Vishay. Verify pinout compatibility and thermal resistance values when substituting to ensure performance parity.