Description
TIP122 Silicon Power Darlington Transistor | High Current & Voltage Handling
The TIP122 is a high-power NPN Darlington transistor designed for high-current and high-voltage applications. It consists of two transistors in a Darlington configuration, providing high gain and efficient switching performance. This transistor is widely used in motor control, power regulation, switching circuits, and audio amplifiers.
With its high collector current (Ic) of up to 5A (continuous) and 8A (peak), the TIP122 is suitable for driving relays, motors, solenoids, and other high-power loads. It features a built-in diode for protection, making it a reliable choice for industrial and DIY electronic projects.
Technical Specifications:
| Parameter | Value |
|---|---|
| Transistor Type | NPN Darlington |
| Package Type | TO-220 |
| Collector-Emitter Voltage (Vce) | 100V |
| Collector-Base Voltage (Vcb) | 100V |
| Emitter-Base Voltage (Veb) | 5V |
| Continuous Collector Current (Ic) | 5A |
| Peak Collector Current (Icm) | 8A |
| DC Current Gain (hFE) @ Ic=3A | 1000 (min) |
| Saturation Voltage (Vce(sat)) @ Ic=3A | 2V |
| Power Dissipation (Pd) | 65W |
| Operating Temperature Range | -65°C to +150°C |
| Pin Configuration | 1. Base (B), 2. Collector (C), 3. Emitter (E) |
| Internal Protection Diode | Yes |
Key Features:
✔️ High Current Gain (hFE) up to 1000
✔️ High Collector Current (5A Continuous, 8A Peak)
✔️ Built-in Freewheeling Diode for Inductive Loads
✔️ Low Saturation Voltage for Efficient Performance
✔️ Reliable TO-220 Package for Heat Dissipation
✔️ Suitable for Direct Logic-Level Switching
Applications:
✅ Motor Driver Circuits – Ideal for driving DC motors and stepper motors.
✅ Relay and Solenoid Switching – Used in high-power switching applications.
✅ Power Amplifiers – Common in audio and signal amplification.
✅ LED and Lamp Drivers – Controls high-power LED circuits.
✅ Battery Chargers & Power Supplies – Used in voltage and current regulation circuits.
✅ Automation & Robotics – Applied in automated control systems.
Package Includes:
📦 1 x TIP122 NPN Darlington Transistor (TO-220 Package)
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