TIP127 Darlington PNP Transistor (Pack of 5)
TIP127 Darlington PNP Transistor (Pack of 5)
The TIP127 is a high-power PNP Darlington transistor, specifically designed for high-current applications. This component is a pack of 5 transistors, providing a convenient and cost-effective solution for various IoT, robotics, and industrial control projects.
The TIP127 Darlington transistor is a type of bipolar junction transistor (BJT) that amplifies weak electrical signals, allowing it to drive high-current loads. The transistor's primary function is to switch electronic circuits on and off, controlling the flow of electrical current. The Darlington configuration consists of two bipolar transistors connected in a cascade arrangement, providing a high current gain (beta) and high input impedance.
| Parameter | Value |
| --- | --- |
| Transistor Type | PNP Darlington |
| Maximum Collector-Base Voltage (Vcb) | 60V |
| Maximum Collector-Emitter Voltage (Vce) | 60V |
| Maximum Emitter-Base Voltage (Veb) | 5V |
| Maximum Collector Current (Ic) | 5A |
| Current Gain (beta) | 1000-2500 |
| Base-Emitter Voltage (Vbe) | 1.5V |
| Collector-Base Capacitance (Ccb) | 100pF |
| Collector-Emitter Capacitance (Cce) | 100pF |
| Operating Temperature Range | -55C to 150C |
| The TIP127 Darlington transistor is suitable for a wide range of applications, including |
IoT projects requiring high-current control
Robotics and motor control systems
Industrial control and automation
Power supplies and DC-DC converters
High-voltage switching applications
The TIP127 transistor is sensitive to electrostatic discharge (ESD) and should be handled with care to prevent damage.
It is recommended to use a heat sink to dissipate heat generated by the transistor during high-current operation.
The component's dimensions and pinout are compatible with standard transistor sockets and PCB layouts.
TIP127 Darlington PNP Transistor DocumentationOverviewThe TIP127 is a Darlington PNP transistor in a TO-220 package, designed for high-current and high-voltage applications. It consists of two bipolar transistors connected in a Darlington configuration, providing a high current gain and low saturation voltage. This transistor is suitable for use in power switching, motor control, and relay driver applications.FeaturesHigh current gain (hFE) of 1000-2000
Collector-emitter voltage (Vceo) of 60V
Collector current (Ic) of 5A
Emitter-base voltage (Veb) of 5V
Power dissipation (PD) of 65W
Operating temperature range of -55C to 150CPinoutBase: Pin 1
Emitter: Pin 2
Collector: Pin 3Example 1: Simple Switching CircuitIn this example, we will use the TIP127 to switch an LED on and off using a basic digital signal from a microcontroller.Circuit DiagramR1 - 1k resistor
R2 - 10k resistor
LED - Any standard LED
uC - Microcontroller (e.g., Arduino Uno)uC digital output -> R1 -> Base (TIP127)
R2 -> Emitter (TIP127)
Collector (TIP127) -> LED -> GNDCode Example (Arduino)
```cpp
const int ledPin = 9; // Digital output pinvoid setup() {
pinMode(ledPin, OUTPUT);
}void loop() {
digitalWrite(ledPin, HIGH); // Turn LED on
delay(1000);
digitalWrite(ledPin, LOW); // Turn LED off
delay(1000);
}
```
Example 2: Motor ControlIn this example, we will use the TIP127 to control a DC motor using a PWM (Pulse-Width Modulation) signal from a microcontroller.Circuit DiagramR1 - 1k resistor
R2 - 10k resistor
MOTOR - Any standard DC motor
uC - Microcontroller (e.g., Arduino Uno)uC PWM output -> R1 -> Base (TIP127)
R2 -> Emitter (TIP127)
Collector (TIP127) -> MOTOR -> GNDCode Example (Arduino)
```cpp
const int motorPin = 9; // PWM output pinvoid setup() {
pinMode(motorPin, OUTPUT);
}void loop() {
analogWrite(motorPin, 128); // 50% duty cycle (medium speed)
delay(1000);
analogWrite(motorPin, 255); // 100% duty cycle (full speed)
delay(1000);
analogWrite(motorPin, 0); // 0% duty cycle (stop)
delay(1000);
}
```
Note: These examples are basic representations of how to use the TIP127 in different contexts. Please ensure you follow proper safety precautions and consider additional components (e.g., diodes, capacitors) to protect your circuit and ensure reliable operation.