What are SMD LEDs?
SMD LED is a simple luminaire that emits light by passing an electric current through a compound semiconductor. Through the combination of electrons and holes, the excess energy will be released in the form of light to achieve the effect of emitting light.
SMD LED is a simple luminaire that emits light by passing an electric current through a compound semiconductor. Through the combination of electrons and holes, the excess energy will be released in the form of light to achieve the effect of emitting light.
730nm Far Red 3535 SMD LED
The characteristics of SMD LEDs
① Light-emitting principle is a cold light-emitting, rather than by heating or discharge light-emitting, so the component life than tungsten bulbs about 50 ~ 100 times longer, about 100,000 hours.
② No need to warm up time, lighting response speed faster than the general electric light (about 3 ~ 400ns).
③ High electro-optical conversion efficiency, low power consumption, than the light bulb to save about 1/3 ~ 1/20 of the energy consumption.
④ Good vibration resistance, high reliability, low system operating costs.
⑤ Easy to small, thin, lightweight, no shape limitations, easy to make a variety of applications.
Application Scenarios of SMD LED
SMD LEDs are widely used in backlighting of electronic products, indicator lights, vehicle lights, street lights, etc. The specific applications are as follows:
Backlight of electronic products: SMD LEDs are often used in the backlight of electronic products such as mobile phones, tablet PCs, TVs, etc. They have the advantages of small size, light weight, high brightness, low energy consumption, etc., which can meet the requirements of low power consumption and high brightness of electronic products.
Indicator light: SMD LEDs are commonly used in the indicator light of various electronic devices, such as the switch light of the TV, power indicator, charging indicator, etc. SMD LEDs' compact size and adjustable brightness make them have a wider range of applications in the field of indicator light.
Street light: SMD LED can be applied in the field of road lighting, such as street light, highway light, etc. The high brightness and low energy consumption characteristics of SMD LED make it possible to provide more efficient and environmentally friendly lighting solutions for cities.
Advantages of SMD LEDs
SMD LED is affixed to the surface of the circuit board, suitable for SMT processing, reflow soldering, SMD LED is a good solution to the brightness, viewing angle, flatness, reliability, consistency and other issues, relative to other packaging devices, it has a strong resistance to vibration, solder joints defects, low rate, high frequency characteristics, etc., it is in the smaller area encapsulated in a larger number of LED chips, the use of lighter PCB and the reflective layer of material , showing that the reflection layer needs to be filled with less epoxy resin, by removing the heavier carbon steel material pins, reduce the size, can easily reduce the product weight by half, the volume and weight of only 1/10 or so of the traditional cartridge components, the use of SMD encapsulation, the volume of the electronic product is reduced by 40% to 60%, the weight is reduced by 60% to 80%, and ultimately make the application more perfect.
Plug-in LED encapsulation using the form of potting. The process of potting is first in the LED forming cavity injected with liquid epoxy resin, and then inserted into the pressure welded LED bracket, put into the oven to let the epoxy resin curing, the LED from the cavity out of the mould that is shaped. Due to the relatively simple manufacturing process and low cost, it has a high market share.
Precautions
1. Clean, do not use unknown chemical liquid to clean the SMD LED: unknown chemical liquid may damage the SMD LED, when necessary to clean, immerse the SMD LED in alcohol, at normal room temperature for less than 1 minute and dry naturally for 15 minutes before use.
2. Anti-moisture, in order to avoid the product in the transport and storage of moisture absorption, chip LED packaging is with moisture-proof aluminium packaging bag packaging, and the bag contains desiccant and humidity card, desiccant is mainly to play a role in controlling the humidity of the bag, humidity card is mainly to play a role in monitoring the humidity of the bag.
3. Storage bags are sealed and stored at a temperature of <40℃.