220 Ohm Resistor (Pack of 10)
220 Ohm Resistor (Pack of 10)
The 220 Ohm Resistor is a passive electronic component that opposes the flow of electrical current. It is a type of fixed resistor, meaning its resistance value remains constant and is not adjustable. This component is commonly used in a wide range of electronic circuits and projects, including IoT applications, robotics, and DIY electronics.
The primary function of the 220 Ohm Resistor is to reduce the voltage or current in a circuit, thereby controlling the amount of energy flowing through it. This is achieved by converting some of the energy into heat, which is then dissipated into the environment. Resistors are essential in electronic circuits, as they help to |
Limit the current flowing through a component to prevent overheating or damage
Divide voltage levels between different parts of a circuit
Impede the flow of AC (alternating current) signals
Provide a fixed reference point for voltage or current measurements
220 Ohms (5% tolerance)
1/4 watt (0.25 watts)
Through-hole, axial lead
3.2 mm x 1.6 mm x 0.8 mm (length x width x height)
2.5 mm (center-to-center)
Carbon film or metal film
-40C to +125C
10 pieces per pack
The 220 Ohm Resistor is a popular value in electronic circuits and is often used in conjunction with other components to create voltage dividers, signal attenuators, and current limiters.
The component is RoHS (Restriction of Hazardous Substances) compliant, ensuring it meets environmental standards for electronic components.
The through-hole design makes it easy to mount the resistor onto a PCB (Printed Circuit Board) or breadboard, with sufficient clearance for soldering and wire management.
When handling resistors, ensure they are not exposed to excessive heat, moisture, or physical stress, which can affect their performance and lifespan.
Use a resistor with a suitable power rating for your application to prevent overheating and failure.
Always verify the resistor's value and tolerance before using it in a circuit to ensure accurate results.
By incorporating the 220 Ohm Resistor into your IoT project or electronic circuit, you can take advantage of its reliable performance and versatility to achieve precise control over voltage and current flows.
Component Documentation: 220 Ohm Resistor (Pack of 10)
Overview
The 220 Ohm Resistor is a passive electronic component that restricts the flow of electrical current. This pack of 10 resistors is suitable for various IoT projects, prototyping, and circuit designs. The resistor's 220 Ohm rating indicates its resistance to the flow of electric current, measured in Ohms ().
Key Features:
Resistance: 220
Power Rating: 1/4 Watt
Tolerance: 5%
Package: Through-Hole Resistor (THD)
Operating Temperature: -55C to +155C
Code Examples:
### Example 1: LED Circuit with Raspberry Pi
In this example, we'll use the 220 Ohm Resistor to limit the current flowing through an LED connected to a Raspberry Pi's GPIO pin.
Circuit Diagram:
Raspberry Pi (GPIO pin)
220 Ohm Resistor (R1)
LED (D1)
Raspberry Pi Code (Python):
```python
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT) # Set GPIO 17 as output
while True:
GPIO.output(17, GPIO.HIGH) # Turn on LED
time.sleep(1)
GPIO.output(17, GPIO.LOW) # Turn off LED
time.sleep(1)
```
Explanation: The 220 Ohm Resistor (R1) is used to limit the current flowing through the LED (D1) to prevent it from burning out. The resistor is connected in series with the LED and the Raspberry Pi's GPIO pin 17. The Python code toggles the GPIO pin high and low to turn the LED on and off.
### Example 2: Voltage Divider with Arduino
In this example, we'll use the 220 Ohm Resistor as part of a voltage divider circuit to reduce a 5V input voltage to 2.5V.
Circuit Diagram:
5V Power Source (VCC)
220 Ohm Resistor (R1)
220 Ohm Resistor (R2)
Arduino Board (Analog Input)
Arduino Code:
```cpp
const int sensorPin = A0; // Analog input pin
int sensorValue = 0;
void setup() {
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(sensorPin);
float voltage = sensorValue (5.0 / 1023.0);
Serial.print("Voltage: ");
Serial.print(voltage);
Serial.println(" V");
delay(1000);
}
```
Explanation: The two 220 Ohm Resistors (R1 and R2) are connected in series to form a voltage divider, reducing the 5V input voltage to 2.5V. The Arduino Board reads the divided voltage through its Analog Input pin (A0). The Arduino code converts the analog reading to a voltage value and prints it to the serial monitor.
These examples demonstrate the usage of the 220 Ohm Resistor in different contexts, showcasing its versatility and importance in various IoT projects.