Overview
The 1808 LED is a surface-mount device (SMD) LED with dimensions of 1.8mm x 0.8mm, making it one of the smaller LEDs available for commercial use. Its compact size and efficiency make it ideal for space-constrained applications like mobile devices, automotive dashboards, and wearable technology. Due to its standardized footprint, it is compatible with automated assembly processes, reducing manufacturing costs. The LED is typically available in single-color (e.g., red, green, blue, white) or bi-color configurations, with variations in brightness and viewing angles to suit diverse needs.
Structure and Working Principle
The 1808 LED consists of a semiconductor chip mounted on a lead frame and encapsulated in epoxy resin. When forward voltage is applied, electrons recombine with holes in the semiconductor, emitting photons (light). The wavelength and color depend on the semiconductor material (e.g., GaAs for red, InGaN for blue/white). The LED’s small size necessitates precise current control, typically via a current-limiting resistor or driver IC. Its low thermal resistance allows moderate heat dissipation, though prolonged overcurrent can reduce lifespan. The 1808 package lacks a built-in lens, relying on the PCB’s reflective surface or external optics to direct light.
Key Features
The 1808 LED’s primary advantage is its miniaturization, enabling high-density layouts in modern electronics. It offers typical luminous intensities ranging from 100 to 1,000 mcd, with forward voltages of 2–3.5V depending on the color. Its low power consumption (20–30 mA) aligns with energy-efficient designs. Additionally, it exhibits fast response times (<100 ns) and a long operational lifespan (up to 50,000 hours). Unlike larger LEDs, the 1808’s viewing angle is narrower (120–140 degrees), which may require diffusers for uniform illumination in some applications.
Application Areas
1808 LEDs are ubiquitous in consumer electronics, such as smartphone button backlighting, TV edge lighting, and laptop status indicators. Automotive uses include dashboard backlighting, HVAC controls, and infotainment systems. Industrial applications encompass control panels, instrumentation, and safety signage. Their small size also suits wearable devices (e.g., fitness trackers) and IoT gadgets. In B2B procurement, buyers often source these LEDs in reels of 3,000–5,000 units for automated pick-and-place assembly, prioritizing suppliers with consistent color binning and reliability testing.
Maintenance and Precautions
To ensure longevity, avoid exposing 1808 LEDs to currents exceeding their rated forward current (typically 20–30 mA). Static electricity can damage the semiconductor; thus, ESD-safe handling during assembly is critical. Soldering should follow reflow profiles specified by the manufacturer to prevent thermal stress. Storage in dry, anti-static packaging is recommended to prevent moisture absorption. For applications requiring high brightness, ensure adequate PCB thermal management, as excessive heat can degrade performance over time. Regularly inspect solder joints for cracks in high-vibration environments like automotive systems.
B2B Procurement Guide
When sourcing 1808 LEDs, verify key parameters: wavelength (for color consistency), luminous intensity (mcd), and forward voltage. Request manufacturer datasheets and batch testing reports to ensure compliance with industry standards (e.g., IEC 62471 for photobiological safety). Bulk pricing varies by order volume and color; white and blue LEDs tend to cost slightly more due to complex semiconductor materials. Lead times for custom binning or non-standard colors may extend to 6–8 weeks. Reliable suppliers often provide sample kits for evaluation before large-scale orders.
Related Manufacturers
- 主营：继电器、ir中国授权、频率合成器、BP1808、ad8532ar放大器、ad828arz放大器、ad829jrz放大器、ad818arz放大器、ad8031arz放大器、ad8058arz放大器、ad8532arz放大器、ad8001arz放大器、ad8307arz放大器、ad8651armz放大器、ad8099ardz放大器、ad8534aruz放大器、ad706jr通用运放、op42gsz精密运放、op90gpz通用运放、ad8417brmz放大器、op07csz精密运放、ad712jrz精密运放、hmc326ms8ge放大器、op490gsz通用运放、op162gsz精密运放、ad848jrz通用运放
- 主营：smd灯珠、键盘灯、020背光、贴片led、全彩led、耳机led、流光led、指示led、带球led、杀菌led、共阳led、led灯珠、键盘led、键盘rgb、双色灯、全彩rgb、贴橙光、贴白光、流光灯、鼠标灯、贴绿光、雾状rgb、指示灯、反编灯、贴红光
- 主营：集成电路IC、MOS管、二三极管、BP1808、功放IC、驱动IC、电解电容、电源芯片、继电器、单片机、光耦、三端稳压、可控硅、锂电池充电芯片、USB、数码管
- 主营：LED发光二极管、贴片LED灯珠、红外发射接收管、led直插灯珠、白光贴片led灯珠、陶瓷LED灯珠、4040蓝光LED灯、LED贴片灯珠、5050白光LED灯、5054白灯、发光二极管、红绿双色LED灯珠、3020柠檬黄灯珠、3020全色系灯珠、1206红光灯珠、3528RGB灯珠、双色LED灯珠、侧面发白光LED灯珠、3224红光灯珠、七彩黑面灯珠、侧面发光灯珠、3020蓝光灯珠、5054RGB球头、三色LED灯珠、侧发光LED灯珠
- 主营：led轻便工作灯、防爆头灯、微型防爆电筒