TIP121 NPN 80V,65W,5A Darlington Power Transistor

TIP121 – NPN Darlington Power Transistor (80V, 5A, TO-220)

📄 Description:

The TIP121 is a popular NPN Darlington Power Transistor designed for medium to high current switching and linear applications. It features a collector-emitter voltage of 80V, collector current of 5A, and power dissipation capability of up to 65W. Its built-in Darlington pair provides very high current gain, making it suitable for applications where base drive current is limited.

Packaged in a standard TO-220, it offers easy heatsink mounting and excellent thermal performance, ideal for industrial and consumer electronics.

📐 Specifications:

🌟 Key Features:

• 💡 Darlington Configuration – High gain (hFE up to 1000+)

• ⚡ High Voltage & Current – 80V / 5A capability

• ♨️ Power Dissipation – Up to 65W with proper heatsink

• 🧲 Low Base Drive Requirement

• 📦 TO-220 Package – Compact with excellent heat handling

⚙️ Applications:

• 🔊 Audio Amplifier Output Stages

• 🔄 Motor Drivers and Control Circuits

• 🔌 Voltage Regulators

• 💡 DC Lighting Systems

• 🔁 Relay and Solenoid Drivers

• 🧰 Industrial Automation