Main technical characteristics of SMD 5050 diode
SMD 5050 is a model of an LED, which, with small dimensions, is characterized by high brightness. Due to this, they are actively used in the production of LED strips and automotive lamps. Based on the SMD 5050, models such as 5630 and 5730 were designed. Their efficiency indicator is 80 Lumens per 1 Watt of absorbed power.
The power of 5050 SMD LEDs allows them to be used for the production of home lamps. But more often they are installed in light bulbs "corn". From 30 to 100 elements are placed here, which provides a good luminous flux. The largest product gives as much light as a 100 W incandescent lamp.
Description and characteristics of LED SMD 5050
Before buying SMD 5050 LEDs, you should carefully study the characteristics, as buyers are often sold Chinese fakes that do not meet the stated technical specifications.
LEDs are able to work without damage and with original light transmission characteristics for more than 3000 hours. When purchasing Chinese counterparts, it is worth considering that almost all performance indicators will be worse by about 3 times. But without experience, it is difficult to recognize fakes.
The following materials are used to create SMD 5050:
- indium;
- aluminum;
- gallium;
- phosphorus.
Nitrogen compounds are also present in the composition (as alloying additives). To make the case, the production uses plastic that is resistant to high temperatures. The diffuser is a lens filled with epoxy resin. Heat sinks are installed to cool the crystals. Each of the elements is equipped with three cathodes and the same number of anodes.
Application features
SMD 5050 are unique due to the original production scheme. They began to be produced a long time ago, this is one of the best options for mounting on tape. 3 separate and controllable crystals allow you to get different colors of glow, as well as adjust using the controller.
SMD 5050 is used as decorative lighting for:
- decorations for the New Year;
- room decoration;
- creation of light and music effects;
- advertising and attracting the attention of potential buyers.
For bright white color it is recommended to connect powerful elements with the 5050 SMD 5730.
How to choose
To make the right choice, you need to consider the following:
- the presence of a QR code or a barcode on the package;
- the presence of characteristics;
- the package must contain a passport and instructions for use;
- the correct spelling of the name;
- the packaging must not be damaged.
The seller should not refuse to return if the diodes are not working or do not fit the buyer. In addition, the product is guaranteed for 1 year if it is original.
How to connect correctly
Before buying SMD 5050 LEDs, you should figure out how to connect them correctly. First of all, the load characteristics of the diodes should be taken into account. You can only connect to the network if there is a resistor. It must be remembered that the resistance of the resistors should not be less than the nominal. The quality work of each of the elements and the service life depend on this.
Wiring diagram
To understand the wiring diagram and be able to work on it, you need to have the skills of an electrician. If a person is working with LEDs for the first time, the probability of making the correct connection of the elements is very small.
If you have to deal with the connection yourself, you should study the instructions as best as possible and practice on other LEDs. Here, a common bunch of current limiter-LED is used. Such a scheme is suitable for all single-crystal structures, the difference is only in the ratings of the current-limiting element.
An exception is possible in the case of three crystals mounted on an LED matrix. In the 5050 series, it has three cathodes and three anodes. The connection is made for each of them separately.
LED installation instructions
In production, group soldering is used for installation. Using a special mechanism, the LEDs are mounted on a board that is covered with paste. The next step is sending it to the oven. Here, under the influence of high temperature, the paste will decompose into 2 elements: flux and solder.After performing its functions, the flux will evaporate, and the solder will remain on the board tracks and contacts, ensuring a high-quality connection of the elements with the substrate.
A soldering iron is used to install LEDs with your own hands. The following rules should be taken into account here:
- tip temperature should not exceed 300 °;
- determine the polarity before starting work;
- contact time - no more than 9 seconds, otherwise the crystal may overheat, which will negatively affect the characteristics or cause burnout;
- at the time of soldering, the body temperature should not exceed 260 °.
If there is no soldering iron or skills to work with it, for installation you can use a special building hair dryer. This technology is used in production using solder paste.
Distance between LEDs
Density is a technical parameter that determines the number of elements installed per 1 meter of tape. They can be from 30 to 240 pieces. Density determines the characteristics of the luminous flux and the energy required for operation.
To prevent degradation of the elements, a tape with a capacity of 120 or 240 diodes per 1 meter must be installed on an aluminum profile. When it comes to purchasing tape on a reel, the manufacturer can indicate the total number of elements. For example, 300 LEDs per 5 meters. This means that the density is standard: 60 pieces per 1 meter.
How to avoid connection errors
If there is no resistor, the LEDs must not be connected to a power source. If 1 resistor is used, only elements of the same type can be connected in series.When a three-chip diode is used, each is connected through a separate resistor and connected to a similar diode in the next module.
We advise you to watch the video: Errors when connecting LEDs.
It is forbidden to connect elements with different load characteristics to each other. For example, connecting 5050 and 3528 LEDs to each other is not allowed. If a resistor with unsuitable characteristics is used, this will provoke an increase in the load current for the LED, which will negatively affect its service life.
