The 5mm White LED is a standard through-hole optoelectronic semiconductor device that emits a bright white light when forward-biased. Because semiconductors cannot naturally emit white light, this component utilizes a high-efficiency Indium Gallium Nitride (InGaN) blue LED chip coated with an internal yellow phosphor layer. When powered, the blue light excites the phosphor, mixing together to produce a balanced white light spectrum. The device features a 5mm clear plastic dome package that acts as a focusing lens. It is built with two radial wire leads: a longer positive lead (anode) and a shorter negative lead (cathode), alongside a structural flat edge on the epoxy rim to help users identify the polarity. It is widely used for flashlights, display backlighting, night lights, emergency lighting, and general illumination prototyping.Â
Key Features
- Standard through-hole package: Features a universal 5mm radial lead design for quick breadboard testing and standard PCB mounting.Â
- Phosphor-converted InGaN technology: Employs an advanced blue emitter and yellow phosphor combination to generate a true white output.
- High luminance output: Delivers exceptional brightness levels compared to colored LEDs, making it suitable for illumination rather than just status indication.
- Low power consumption: Draws very low current while maintaining extreme brightness, optimizing energy efficiency in battery-powered devices.Â
- Polarity protection layout: Molded with mismatched lead lengths and a distinct flat housing side to ensure correct board installation.Â
- Solid-state reliability: Contains no fragile moving filaments or glass bulbs, providing excellent resistance to vibrations and mechanical shocks.
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