The 3mm Red LED is a through-hole Light Emitting Diode (LED) designed to provide bright red illumination with low power consumption and long service life. It is widely used in Arduino projects, indicator lights, DIY electronics, educational kits, PCB designs, and decorative lighting. The compact 3mm package makes it suitable for applications where space is limited.

Features

• Full Name: 3mm Red Light Emitting Diode (LED)
• Bright red illumination
• Low power consumption
• Long operating life
• Fast switching response
• Through-hole mounting
• High reliability
• Easy to use with microcontrollers

Specifications

Pin Configuration

Note: The longer lead is the Anode (+), while the shorter lead and the flat side of the LED body indicate the Cathode (−).

Applications

• Power indicator lights
• Arduino projects
• ESP32 and Raspberry Pi projects
• Breadboard circuits
• DIY electronics
• Educational electronics kits
• Signal indicators
• Decorative lighting
• PCB prototype designs

Advantages

• Bright and clear red light
• Low power consumption
• Compact 3mm size
• Long operating life
• Fast response time
• Easy to solder
• Cost-effective

Size

Package Includes

• 5 × 3mm Red LEDs

Note: Always use a current-limiting resistor (typically 220Ω–1kΩ, depending on the supply voltage) when operating the LED. Do not connect the LED directly across a power supply, as excessive current can permanently damage it. Ensure correct polarity during installation for proper operation.