TIP120 transistor

The TIP120 is a high-current, high-voltage Darlington transistor used for switching and amplification applications. It is part of the TIP series of transistors and is well-suited for driving motors, relays, and other high-power loads. The TIP120 features a high current gain and can handle significant power dissipation, making it ideal for use in various electronic circuits requiring robust switching performance.

Key Features:

• Darlington configuration for high current gain
• High current handling capability
• High voltage rating for reliable operation in demanding environments
• Built-in protection against thermal overload and overcurrent
• Suitable for use in switching and amplification applications

Technical Specifications:

• Type: NPN Darlington Transistor
• Collector-Emitter Voltage (Vceo): 60V
• Collector-Base Voltage (Vcbo): 60V
• Emitter-Base Voltage (Vebo): 5V
• Collector Current (Ic): 5A (maximum)
• Power Dissipation (Pd): 65W (maximum)
• Current Gain (hFE): Typically 1000 to 2000 (at Ic = 4A)
• Gain-Bandwidth Product (fT): 2 MHz (typical)
• Package Type: TO-220

Applications:

• Motor and relay drivers
• High-power switching circuits
• Amplifiers
• Solenoid drivers
• Light dimmers and control systems

Usage:

1. Mount the TIP120 transistor on a suitable heatsink if high power dissipation is expected.
2. Connect the base pin to the control signal through a base resistor to limit current.
3. Connect the collector pin to the load and the emitter pin to ground.
4. Ensure that the power supply and load are within the transistor’s ratings to avoid damage.
5. Test the circuit to verify proper operation and adjust the base resistor as needed for the desired switching behavior.

Caution:

• Ensure proper heatsinking to prevent thermal overload.
• Verify that the transistor’s voltage and current ratings are not exceeded in your application.
• Handle with care to avoid damage from static electricity or mechanical stress.

Datasheet:
For detailed technical specifications, refer to the TIP120 Datasheet.