The regular appearance size of 3535 LED lamp chips is: 3.5*3.5*2.0mm, mostly ceramic substrates, with good heat dissipation performance. The 3535 that can be seen on the market, not only the appearance is slightly different from different manufacturers, but also the photoelectric parameters are almost different, and the chips inside the package are also very different, including 0.5-5W chips. The raw materials of 3535 SMD LED lamp chips are directly purchased by Hongfucheng Optoelectronics; Hongfucheng Photoelectric, a professional high-quality LED manufacturer, has stable performance, good heat dissipation, small light decay, and longer life. Features: 1. Low thermal resistance ceramic structure 2. Small size, flexible design 3. Fully automatic integrated molding process 4. Good uniformity of light source, wide viewing angle 5. High luminous efficiency and high luminous flux maintenance rate.
Forward current: 700mA
Pulse forward current: 1000mA
LED Junction Temperature: 125℃
Reverse allowable voltage: 5V
Operating temperature: -40℃～＋80℃
Storage temperature: -40℃～＋80℃
Pulse time≤10ms, duty cycle≤1/10.Pulse Width≤10ms,Duty Ratio≤1/10
The above are some 3535 SMD LED lamp chip specifications and 3535 SMD LED lamp chip pictures. For more information on high-power 3535 SMD LED lamp chips, please contact Hongfucheng Optoelectronics customer service.
More LED light-emitting diode products: SMD LED lamp chips 5630, SMD5630 LED lamp chips, SMD LED lamp chips 1206, SMD LED lamp chips 0603, SMD LED lamp chips 0805, SMD LED lamp chips 3020, SMD LED lamp chips Lamp chips 3014, SMD LED lamp chips 3535, SMD LED lamp chips 3528, SMD LED lamp chips 5050, SMD LED lamp chips 5630, SMD LED lamp chips 3528RGB, SMD LED lamp chips 3535RGB, SMD LED lamp chips 5050RGB, SMD LED lamp chips 010, SMD LED lamp chips 020, SMD LED lamp chips in 335, SMD LED lamp chips 1615, In-line LED lamp chips, SMD LED lamp chips, LED lamp chips emission tube , SMD LED lamp chips, plug-in LED lamp chips, small butterfly LED lamp chips; please choose Hongfucheng Optoelectronics for the full range of LED lamp chips.
3535LED lamp chips have unique advantages, but LED lamp chips are a fragile semiconductor product, so we should be extra careful when using LED products. Now we will summarize some LED use precautions. Please be highly careful during use. Pay attention to.
(1) DC power supply should be used: In order to reduce product cost, some manufacturers use "resistance-capacitance step-down" method to supply power to LED products, which will directly affect the life of LED lamp chip products. Using a dedicated switching power supply (preferably a constant current source) to supply power to the LED lamp product will not affect the service life of the product, but the product cost is relatively high.
(2) Anti-static measures must be taken: LED lamp chip products must adopt certain anti-static measures in the process of processing and production, such as: the workbench must be grounded, workers must wear anti-static clothing, with anti-static rings, and with anti-static Electrostatic gloves, etc., if possible, install an anti-static ion fan, and at the same time, ensure that the humidity of the workshop is about 65%, so as to prevent the air from being too dry to generate static electricity, especially green LED lamp chips are relatively easy to be damaged by static electricity. In addition, LEDs of different quality grades have different antistatic abilities, and LED lamp chips with high quality grades have stronger antistatic abilities. There may be many friends who are not very familiar with static electricity. I will introduce the knowledge of static electricity in detail here: The essence of static electricity is the existence of residual charge. Charge is all physical quantities related to the nature of electrostatic phenomena, and is called ESD in English.
Quantities related to electric potential, electric field, current, etc. are all physical quantities due to the existence of electric charge or the movement of electric charge. Many electrostatic problems are caused by people's lack of ESD awareness, and even now there are many people who suspect that ESD will cause damage to electronic products. This is because most ESD damage occurs below the human senses, because the human body's perception voltage to electrostatic discharge is about 3KV, and many electronic components are damaged at hundreds or even tens of volts, usually after electronic devices are damaged by ESD There is no obvious boundary, and the components are mounted on the PCB and then tested, and as a result, many problems occur and the analysis is quite difficult. Especially for potential damage, it is difficult to measure obvious changes in its performance even with precision instruments. Therefore, many electronic engineers and designers suspect ESD. In recent years, experiments have confirmed that such potential damage will affect the performance of electronic products after a certain period of time. Reliability drops significantly.
(3) Temperature of LED lamp chips: It should be noted that the increase of temperature will reduce the internal resistance of LED lamp chips. When the external ambient temperature rises, the internal resistance of LED lamp chips light source will decrease. When the working current increases, when it exceeds its rated working current, it will affect the service life of the LED product, and will seriously "burn out" the LED lamp chip light source. Therefore, it is best to use a constant current source to supply power to ensure that the working current of the LED does not affected by the outside temperature. The temperature of the LED lamp chip is also the most important factor affecting the life of the LED. Please pay attention.
(4) Sealing of LED lamp chip products: No matter what kind of LED lamp chip products, as long as they are used outdoors, they are faced with waterproof and moisture-proof sealing problems. If they are not handled properly, they will directly affect the service life of LED products. At present, a small number of manufacturers with high product quality requirements use the traditional epoxy resin "pouring" method to seal LED products. This method is more troublesome to operate and is not very suitable for larger LED lamp products. It will also increase the weight of the product.
(5) The current of the LED lamp chip cannot exceed the IF current of the LED lamp chip: the overcurrent operation will quickly reduce the life of the LED lamp chip. If it exceeds, the LED will be burned out immediately.
(6) Attention should be paid to the corners of LED lamp chips: when the LED lamp chips are bent or folded, please do not get too close to the colloid, and keep a distance of more than 2mm from the colloid, otherwise the bracket in the LED colloid will be separated from the gold wire, and the corner will be in The number of folds in the same place cannot exceed three times, the corner is bent to 90°, and then it is returned to the original position once.
(7) Soldering temperature: The soldering temperature should be around 260℃, the time should be controlled within 5S, the soldering point should be more than 2.5mm from the bottom of the colloid, and the electric iron must be grounded.
