3mm Red Led (Pack of 10) Documentation

Component Description

3mm Red Led (Pack of 10)

Overview

The 3mm Red LED (Pack of 10) is a standard, high-brightness LED indicator lamp designed for use in a wide range of electronic projects and applications. This component is a pack of 10 individual LEDs, each providing a bright red light when powered.

Functionality

The primary function of the 3mm Red LED is to emit a bright, focused beam of red light when an electric current is passed through it. This makes it an ideal component for use in indicator applications, such as

Power-on indicators

Status indicators

Warning lights

Backlighting for LCD displays

Decorative lighting

Key Features

Color

Red

Size

3mm (diameter)

Shape

Round

Lens Type

Clear

Package Type

Through-hole

Lead Spacing

2.54mm (0.1 inch)

Viewing Angle

30

Luminous Intensity

100-200 mcd (typical)

Forward Voltage

1.8-2.2V (typical)

Reverse Voltage

5V (maximum)

Operating Temperature

-25C to 85C

Storage Temperature

-40C to 100C

Packaging

Pack of 10 individual LEDs

Electrical Characteristics

Forward Current

20mA (maximum)

Reverse Current

10uA (maximum)

Power Dissipation

65mW (maximum)

Mechanical Characteristics

LED Material

GaP (Gallium Phosphide)

Lead Material

Copper-clad alloy

Insulation Resistance

10M (minimum)

Applications

The 3mm Red LED (Pack of 10) is suitable for use in various applications, including

Electronic devices and appliances

Industrial control systems

Automotive systems

Medical devices

Consumer electronics

DIY and hobby projects

Precautions

Handle the LEDs by the edges to prevent damage to the leads or the LED itself.

Avoid touching the LED pins or leads with bare hands, as the oils from your skin can cause corrosion.

Use a soldering iron with a temperature of 250C (482F) or lower to prevent damage to the LED.

Avoid applying excessive force or bending to the leads, as this can cause damage to the internal connections.

Pin Configuration

3mm Red LED (Pack of 10) Documentation
Pinout Description:
The 3mm Red LED (Pack of 10) has two pins, which are described below:
Pin 1: Anode (Positive Leg)
Function: The anode is the positive terminal of the LED, where the positive voltage is applied to turn the LED on.
Characteristics: The anode is typically marked with a longer leg or a bent lead on the through-hole LED package.
Connection: Connect the anode to the positive voltage source (e.g., VCC, 3.3V, 5V) or to a microcontroller's digital output pin set to HIGH.
Pin 2: Cathode (Negative Leg)
Function: The cathode is the negative terminal of the LED, where the negative voltage is applied to turn the LED off.
Characteristics: The cathode is typically marked with a shorter leg or a straight lead on the through-hole LED package.
Connection: Connect the cathode to the negative voltage source (e.g., GND, 0V) or to a microcontroller's digital output pin set to LOW.
Connection Structure:
To connect the 3mm Red LED, follow this structure:
1. VCC/Positive Voltage Source: Connect the anode (longer leg) to a positive voltage source, such as a power supply, battery, or a microcontroller's VCC pin.
2. Resistor (Optional): If necessary, connect a current-limiting resistor in series with the LED to prevent overcurrent and damage. The resistor value depends on the LED's specifications and the voltage source. Consult the datasheet or an online resistor calculator for the correct value.
3. Microcontroller (Optional): If controlling the LED with a microcontroller, connect the anode to a digital output pin set to HIGH to turn the LED on.
4. GND/Negative Voltage Source: Connect the cathode (shorter leg) to a negative voltage source, such as a power supply, battery, or a microcontroller's GND pin.
5. Microcontroller (Optional): If controlling the LED with a microcontroller, connect the cathode to a digital output pin set to LOW to turn the LED off.
Important Notes:
Always check the datasheet for the specific LED's voltage and current ratings to ensure safe operation.
Use a suitable current-limiting resistor to prevent overcurrent and damage to the LED or connected components.
Avoid connecting the LED directly to a power source without a current-limiting resistor, as this can cause damage or even fire.
By following this documentation, you should be able to correctly connect and use the 3mm Red LED (Pack of 10) in your IoT projects.

Code Examples

Component Documentation: 3mm Red LED (Pack of 10)

Overview

The 3mm Red LED is a standard through-hole LED component commonly used in electronic circuits for indication, debugging, and user interface applications. This pack contains 10 individual LEDs.

Pinout

The 3mm Red LED has two legs:

Anode (Positive Leg): longer leg
 Cathode (Negative Leg): shorter leg

Electrical Characteristics

Forward Voltage (Vf): 1.8-2.2V
 Forward Current (If): 20mA
 Reverse Voltage (Vr): 5V
 Luminous Intensity: 100-150 mcd
 Wavelength: 630-660 nm (red light)

Usage Examples

### Example 1: Basic LED Circuit with a Microcontroller (Arduino)

In this example, we will connect the 3mm Red LED to an Arduino board to create a simple blinking LED circuit.

Components:

1 x Arduino Uno board
 1 x 3mm Red LED (from the pack of 10)
 1 x 220 resistor
 2 x Jumper wires

Code:
```c
const int ledPin = 13; // choose an available digital pin on the Arduino

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  digitalWrite(ledPin, HIGH); // turn the LED on
  delay(1000); // wait for 1 second
  digitalWrite(ledPin, LOW); // turn the LED off
  delay(1000); // wait for 1 second
}
```
Connections:

Connect the anode (longer leg) of the LED to digital pin 13 on the Arduino board.
 Connect the cathode (shorter leg) of the LED to a 220 resistor.
 Connect the other end of the resistor to the GND pin on the Arduino board.

### Example 2: LED Circuit with a Raspberry Pi (Python)

In this example, we will connect the 3mm Red LED to a Raspberry Pi board to create a simple Python-controlled LED circuit.

Components:

1 x Raspberry Pi board
 1 x 3mm Red LED (from the pack of 10)
 1 x 220 resistor
 2 x Jumper wires

Code:
```python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
led_pin = 17 # choose an available GPIO pin on the Raspberry Pi

GPIO.setup(led_pin, GPIO.OUT)

while True:
    GPIO.output(led_pin, GPIO.HIGH) # turn the LED on
    time.sleep(1) # wait for 1 second
    GPIO.output(led_pin, GPIO.LOW) # turn the LED off
    time.sleep(1) # wait for 1 second
```
Connections:

Connect the anode (longer leg) of the LED to GPIO pin 17 on the Raspberry Pi board.
 Connect the cathode (shorter leg) of the LED to a 220 resistor.
 Connect the other end of the resistor to a GND pin on the Raspberry Pi board.

Note: Make sure to use a suitable resistor value based on the specific LED and power supply voltage used in your circuit. Exceeding the recommended forward current may damage the LED.