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The 5mm Red LED is a widely used electronic component that emits red light when powered. It is commonly used with boards like Arduino Uno R3 for indicators and basic lighting.
The Red LED is a semiconductor light source that emits red light when current flows through it. It is one of the most basic and essential components in electronics, used for indication, signaling, and lighting applications.
This LED typically operates at a forward voltage of around 1.8V to 2.2V and requires a current-limiting resistor to prevent damage. It is suitable for breadboards, PCBs, and DIY electronics projects.
Key Features
Emits bright red light
Low power consumption
Long lifespan
Fast switching speed
Easy to use in circuits
Compatible with Arduino and other microcontrollers
Technical Specifications
Parameter
Value
Type
LED (Light Emitting Diode)
Color
Red
Diameter
5 mm
Forward Voltage
1.8V – 2.2V
Forward Current
10–20 mA
Pin Configuration
Pin
Description
Anode (+)
Long leg
Cathode (-)
Short leg
What’s in the Box
1 × Red LED (5mm)
Ideal For
Indicator lights
Arduino projects
DIY electronics
Signal and status display
Learning electronics basics 🔧
Weight
0.001 kg
Dimensions
2.5 × 0.5 × 0.5 cm
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