STMicroelectronics TIP125 PNP Darlington Transistor 60V 65W 5A TO-220

The STMicroelectronics TIP125 is a 60V PNP Darlington transistor designed for high-current amplification and switching in industrial and power management applications. Built with Planar technology and a monolithic Darlington configuration, it provides high DC current gain alongside a low collector-emitter saturation voltage.

Key Features

• Monolithic Darlington configuration for very high DC current gain (hFE), so a small base current can control a much larger collector current
• Low collector-emitter saturation voltage, which helps reduce power loss and heat generation during operation
• Planar technology with a 'Base Island' layout
• Robust construction in a standard TO-220 case for straightforward mounting and heat dissipation

Applications

The TIP125 is intended for industrial and power management systems that require efficient switching and linear amplification. Its low saturation voltage supports efficiency in power conversion circuits, reducing energy waste and thermal stress on the wider system. It is suitable for driver stages in power supplies, motor controls and audio amplifiers, as well as relay drivers, solenoid drivers and high-power audio outputs.

Specifications

• Transistor Type: PNP Darlington
• Collector-Emitter Voltage (VCEO): 60V
• Power Dissipation (Pd): 65W
• Continuous Collector Current (IC): 5A
• DC Current Gain (hFE): 1000 (typical)
• Mounting Style: Through-Hole
• Package / Case: TO-220
• Pin Count: 3 Pins
• Maximum Operating Temperature: 150°C
• Dimensions (W x D x H): 3.3 x 1.5 x 4.3
• Weight: 2.359 gm

Choose the STMicroelectronics TIP125 5A PNP Darlington transistor for power switching and amplification designs that call for a TO-220 through-hole package.