Check the appearance quality of the selected material
1PCB sheet and processing quality;
2IC device brand and consistency;
3 luminous dot matrix quality;
Check circuit design circuit design specifications, PCB wiring meets LED display technology requirements
Check welding quality
Check whether the patch has components missing or mislabeled, and whether there is a short circuit between the component pins and burrs. Check whether the solder joints of the straight plug are smooth and round, whether the board surface is clean and tidy, and there is no solder joint welding. Check the flatness of the illuminated dot matrix and the consistency of the ink color.
Power-on test (refer to the “Performance Test Report†steps)
1 power supply test the consistency of the luminous lattice;
2 The power-on test is effective for protecting the line drive tube CEM4953;
3 power test signal transmission capability.
LED display merchants, open your eyes! Rejecting cheap low-grade goods, quality is king;
3014 SMD IR LED supplier from China.
3014 SMD IR LED is used in LED infrared light guide plate and LED infrared backlight screen because of the small size of the product.
We produce and sell 3014 SMD IR LED , which is with the wavelength from 680nm-1550nm. In this category, we mainly introduce the two kinds of wavelengths: 940nm IR LED and 850nm IR LED. These two wavelengths are the most commonly used wavelengths in infrared monitoring. They all can be used to monitor products.
940nm infrared LEDs are totally invisible to the naked eye, which means you can't see whether the 940nm working or not. Unless you watch it through some device(like phone's camera), which will show some purple or white color light.
The 850nm infrared LEDs have a very slight reddish when it's working, which means you can see if the 850nm LED is working.
Under the same power, radiation intensity of 850nm will be higher than the 940nm. Of course, 940nm also has its own unique advantages. It is the naked eye that is indistinguishable from work or from work, therefore, its application has been widely used in many special markets in the modern era.
We supply the 3014 940nm SMD IR LED and 3014 850nm SMD IR LED products with difference power, such as: 0.1W 940nm, 0.2w 940nm, 0.3w 940nm, 0.4w 940nm, 0.1W 850nm, 0.2w 850nm, 0.3w 850nm, 0.4w 850nm and so on.
3014 SMD IR LED
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Shenzhen Best LED Opto-electronic Co.,Ltd , https://www.bestsmd.com