Luminous Diode 3535 Application Notice

3535 lamp beads LED lamp beads have a unique advantage, but LED lamp beads are a vulnerable semiconductor product, so we must be careful when using LED products. Now we will summarize some of the LED use precautions. Please attach great importance to it. (1) Power supply should be used in DC power supply. Some manufacturers of manufacturers should be used in order to reduce product costs.“Resistance”Power on LED products by way, which will directly affect the life of LED lamp products. Adopting a special switching power supply (preferably a constant stream source) product supply to LED lamp bead products will not affect the service life of the product, but the product cost is relatively high. (2) Anti -electrostatic measures must be taken in the process of processing and production of LED lamp beads. Gloves, etc., those who have conditions can be installed with anti -static ion fans, and also ensure the humidity of the workshop at about 65%, so as to avoid the air from being too dry to generate static electricity, especially the green LED lamp beads are relatively easy to be damaged by electrostatic damage. In addition, different quality -grade LED anti -static capabilities are also different. LED lamp beads with high quality grade should be stronger. There may be a lot of friends who do not know the static electricity very well. I will introduce the knowledge of static electricity in detail here: the essence of static electricity is the surplus charge. Charge is the physical quantity of all the essence of static electricity. English is called ESD. Related amounts related to potential, electric field, current, etc. are all physical quantities caused by the existence of charge or the movement of the charge. Many electrostatic problems are caused by people without ESD consciousness. Even now, many people suspect that ESD will cause damage to electronic products. This is because most ESD damage occurs below the human feeling, because the human body's perceived voltage of static discharge is about 3KV, and many electronic components will be damaged when they are hundreds of volts or even dozens of volts. Usually, when the electronic devices are damaged by ESD There is no obvious boundary, and the component is installed on the PCB before detection. As a result, there are many problems, and the analysis is quite difficult. Especially for potential damage, it is difficult to measure the performance of its performance even with precision instruments, so both electronic engineers and designers have suspected ESD. In recent years, the experiment has confirmed that this potential damage will be Reliability decreases significantly. (3) The temperature of LED lamp beads should pay attention to the increase in temperature will make the internal resistance of LED lamp beads smaller. After the environmental temperature of the outside world increases, the internal resistance of the LED lamp beads will be reduced. The current rises, when the current operating current exceeds its rated work, it will affect the service life of LED products, which will be severely caused by LED lamp beads“Burn out”Therefore, it is best to use Hengli source power supply to ensure that the working current of the LED is not affected by the external temperature. The temperature of LED lamp beads is also the most important factor affecting the LED life. Please pay attention to it. (4) The sealing of LED lamp products, regardless of the LED lamp bead product, as long as it is applied to the outdoor, is facing the problem of waterproof and moisture -proof sealing problems. If it is not handled well, it will directly affect the service life of LED products. Now there are a small number of manufacturers with high product quality requirements adopt traditional epoxy resin“water”The method is to seal LED products. This method is more troublesome to operate. It is not very suitable for LED lamp bead products with larger volume, and it will also increase the weight of the product. (5) The current of the LED lamp beads cannot exceed the IF current of the LED lamp beads. (6) LED lamp beads must pay attention to the LED lamp beads should not be too close to the colloid when the corner or angle is bent. It should be kept at a distance of more than 2mm from the colloid. The number of foldings at the point cannot be more than three times, and the corner is bent into 90°Back to the original position once. (7) The welding temperature of the welding temperature is about 260 C, the time is controlled within 5s, and the welding point is above 2.5mm from the bottom of the colloid.