The main features of 5050 SMD lamp beads are: Low voltage drive, environmental protection and energy saving; Small size, easy installation; High brightness, large scattering angle, and good consistency.
Precautions for use:
1. Overcurrent protection: The customer must use a resistor for protection, otherwise the drift of the voltage will cause a large change in the current (breakdown). When the lamp bead is used, the current must be within the specified range to avoid damage caused by excessive current.
2. Storage method;
Do not open the moisture-proof bag before preparing to use the product. Before opening the package, please check whether there is any air leakage in the packaging bag. After opening the package, check whether the 20%RH marking area of the humidity label card has changed from blue to pink. If there is air leakage or discoloration, please contact the manufacturer or return it to the manufacturer for high temperature dehumidification treatment. (High temperature dehumidification environment: 120 degrees, 6H) Do not handle it yourself.
Before opening the package, LEDs should be stored at a temperature below 30°C and a humidity below 30°C. 70%RH.
After opening the package, under the condition that the temperature is lower than 30℃, the humidity is lower than 60%RH, and the temperature is controlled within 4H from the time of opening the package to the completion of welding.
If the hygroscopic material (silicon gel) has subsided or the LEDs have exceeded the storage time, it needs to be baked based on the following conditions: 60±5℃ / 24 hours.
Precautions for reflow soldering 1. Reflow soldering cannot be performed more than twice.
During soldering, do not add any pressure to the LEDs while heating.
After welding, the overcurrent can not be overcurrent until the temperature is normally returned to below 40°C.
Protective measures Use appropriate tools to pick from the side of the material, because the product is encapsulated with silicone to avoid crushing the colloid during the application process and damaging the internal structure and causing defects. LEDs are semiconductor sensitive devices, and may be damaged by electrostatic discharge (ESD) or pulsed current (EOS). Effective grounding of the operating machine and good electrostatic protection during operation can effectively improve product quality.
SMD LED lamp beads need to avoid sulfur in the production process and the environment in which the lamps are used. halogen. acid. alcohol. alkali. Ketoxime volatile compounds, strong oxides. Contact with corrosive substances such as plasticizers (also known as plasticizers, dioctyl phthalate DOP or dibutyl phthalate DBP, PVC materials contain a large amount of plasticizers). That's it for today's explanation. If you want to know how to buy it, you can directly contact the online customer service for consultation.
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