Working
5mm blue LEDs emit light in the blue spectrum (approximately 450–490nm) when a forward voltage is applied. Their light is generated by the recombination of electrons and holes in the semiconductor material, specifically designed for blue emission.
Applications
- Backlighting for displays and control panels.
- Decorative and ambient lighting.
- Indicator lights for electronics and appliances.
- Used in medical devices and phototherapy equipment.
- Part of RGB systems for color mixing.
Specifications
- Forward Voltage: 3.0–3.2V
- Forward Current: 20mA (typical)
- Wavelength: 450–490nm
- Brightness: 1000–3000 mcd
- Viewing Angle: 20–30 degrees
Pinout
The 5mm blue LED has two pins:
- Anode (+): The longer pin, connected to the positive terminal of the power supply.
- Cathode (-): The shorter pin, connected to the ground (GND).
