The 3528 Symphony LED lamp chips are packaged with high-definition environmentally friendly silica gel and wafer chips. The size of the lamp chips is 3.2*2.8*1.9mm. There are white, red, yellow, green, orange, blue, purple and other colors, and various other colors can also be customized. Application scenarios include all kinds of home appliances, digital, communications, automotive electronics, lighting, electronic toys, electronic clocks, traffic instructions, medical beauty equipment, electronic teaching equipment, urban lighting projects and other related products.
With the rapid development of representative electronic products such as intelligent communication, 5G Internet, and digital electronics, basic electronic components have entered a stage of faster transformation and development. The LED SMD lamp chips produced by Hongfucheng Optoelectronics are also favored in the field of electronic products, especially the 3528 Symphony LED SMD lamp chips have become a popular product. So how to distinguish the quality of LED SMD lamp chips when purchasing?
The distinction of lamp chip bracket materials: At present, there are aluminum brackets, brass brackets, copper brackets, etc. on the market. Aluminum brackets are cheap, and copper brackets are expensive, and the prices are several times apart. Even if it is a copper bracket, the price of silver plating will vary. The market is usually called a good bracket, and most of them are made of silver-plated brass.
The distinction of welding wire data: The chip and the bracket are connected by gold wire welding process to complete the electrode connection. At present, there are two kinds of alloy wire and pure gold wire on the market, and pure gold wire is the best. Hongfucheng Optoelectronics uses pure gold wires to be divided into 0.7, 0.9, 1.0, 1.2, etc. according to the thickness.
Distinction of chip size: The reported chip size is usually in mil. If there is no high-magnification measuring microscope, it is usually impossible to distinguish. The larger the chip, the brighter. We can compare the chip size by calculating the chip area, such as 23X10, the area of the chip is 230 square mil, and it is a good way to distinguish the chip size by the chip area.
Model specifications of color separation, partial pressure and light separation: (1) Color separation: it is the color temperature classification, such as 3200K-3350K is the first file, the regular packaging factory will provide the color temperature BIN code, the smaller the color temperature classification, the better, the color temperature The bins are small, and the color uniformity of the light source light given is good. (2) Voltage division: It is the voltage binning of the chip, such as 3.0V-3.15V. For the light source is a hybrid interface, the voltage binning is controlled within 0.15V, so that the current distribution of the light source is uniform, which is beneficial to improve the light source. life. (3) Splitting: It is the brightness of the lamp chips, which is divided into lumens or light intensity. For the light source used for lighting, choose lumen. It is recommended to purchase LED SMD lamp chips, or based on light efficiency, products with high light efficiency will save energy and have a long life.
3528 full color
The difference between phosphors: White light chips are made of blue light chips and yellow phosphors. The phosphors are mainly divided into aluminates and silicates. The performance of aluminate is better than that of silicate. The representative of aluminate is YAG. YAG has stable performance and low light decay. The chemical stability of silicate itself is poor, but its brightness is higher than that of YAG. Products, can not be deceived by the so-called high brightness, this is a big problem.
The difference between glue: phosphor powder should be mixed with glue and then placed on the chip. The quality of glue will affect light decay and color drift. Poor glue will yellow over time, and light decay will increase. Good glue is jelly. glue.
LED chip electrode map: If the chip manufacturer is different, the quality of the LED will be different. The LED manufacturer will clarify which brand of chip package their LED SMD lamp chips use. After the white light LED package, it is impossible to judge the chip from the appearance. Manufacturer's, unless the peeled chip is examined under a high-power microscope.
Finally, let's take a look at the relevant parameters of 3528 LED lamp chips. 3528 emits white light: warm white temperature: 2800-3200k, positive white light (cold white temperature): 6000-9000K-15000K or more.
3528 emits red light: conventional wavelength: 620-630nm, voltage: 1.9-2.2V, power 0.06w, current: 20mA.
3528 emits orange light: conventional wavelength: 600-610nm, voltage: 1.9-2.2V, power 0.06w, current: 20mA.
3528 emits yellow light: conventional wavelength: 585-595nm, voltage: 1.9-2.2V, power 0.06w, current: 20mA.
3528 Emerald Green: Regular wavelength: 515-525nm, voltage: 3.0-3.3V, power 0.06w, current: 20mA.
3528 yellow-green: conventional wavelength: 565-575nm, voltage: 1.9-2.2V, power 0.06w, current: 20mA.
3528 emits blue light: conventional wavelength: 460-470nm, voltage: 3.0-3.3V, power 0.06w, current: 20mA.
3528 emits violet light: conventional wavelength: 395-410nm, voltage: 3.0-3.3V, power 0.06w, current: 20mA.
3528 is pink: Voltage: 3.0-3.3V, power 0.06w, current: 20mA. (See specifications for other detailed parameters).
