How to choose 5mm concave lamp beads?
How to choose 5mm concave lamp beads? Generally, it is packaged with environmentally friendly silica gel, Sanan chips, and pure gold wires. The size is 5*6.8mm, the shape is concave, borderless single flash, warm white. The luminous colors are red, blue, white, green, yellow and other colorful. The welding condition is 260 degrees, the color of the colloid is white and transparent, and the light angle is 140 degrees. The bracket iron is plated with silver. Widely used in: 3C home appliances, automotive electronics, electronic toys, electronic clocks, digital communications, industrial equipment
In addition to the 5mm concave lamp beads, there are also 3mm concave lamp beads, borderless and bordered ones, long legs and short legs. These can be customized according to your actual application and needs.
There are several shapes of LED indicator beads that are common in our life; there are straw hats, round heads, flat heads, squares, bumps, etc. There are also some special-shaped lamp beads, but they need to be customized. It can also be subdivided into monochrome and bicolor. Three-color, common-yin and common-yang lamp beads. It can also be divided into highlight and highlight. Conventional lamp beads. With the application of LED lamp beads more and more widely.
The key to determine the quality of the lamp bead is the chip and the wire. Generally, good manufacturers will use brand chips such as Sanan or Epistar. The wire material is pure 99.9% pure gold wire. The packaging material is epoxy resin, because epoxy resin is not easy to deform and crack, and the glue is dispensed by measuring range. Imported equipment is used for welding and solid crystal.
Buy lamp beads and choose Hailongxing Optoelectronics. Product materials: silver-plated iron, gold wire, environmentally friendly high-temperature resistant glue. Product certification: ISO9001:2015, SGS, with production experience.
The above is about the selection of 5mm concave lamp beads. If you need other knowledge about LED direct plug-in type, you can consult us.
5mm concave lamp beads?,3mm,5mm
There are many welding methods for LED lamp beads on the chip, and the following is one of the commonly used methods for reference. First, use an electric soldering iron to heat some soldering tin on the positive and negative electrode pads of the lamp bead (the soldering tin must not be too much, otherwise, the positive and negative electrode pads will be connected once heated with a hot-air gun), then use a hot-air gun to heat the positive and negative electrode pads at the same time, after the tin melts, use tweezers to place the positive and negative electrodes of the lamp bead on the corresponding pad.
LED is the light emitting diode, which is a semiconductor solid light emitting device that converts electric energy into light energy. Its core is the PN junction. In addition to the forward conduction, reverse cut-off and breakdown characteristics of the general PN junction, it also has the light emitting characteristics under certain conditions. Its structure mainly includes the following parts: lead, bracket, encapsulation glue, bonding wire, LED chip, solid crystal glue and phosphor. The discoloration failure of LED lamp bead is closely related to its material, structure, packaging process and service conditions. The following will analyze the causes of its discoloration through specific cases.
LED lamp beads are also called light emitting diodes. It has a wide range of applications. Its luminous colors include red light, emerald green light, yellow green light, yellow light, purple light, blue light, white light and orange light. The above is monochromatic light. It can also be made into two or three colors.
The gold wire used to package LED lamp beads contains more than 99.99% gold. It is produced by drawing gold from this material. In addition to 99.99% gold, this gold also contains less than 1% other trace elements. One of the core components of LED lamp bead packaging is gold wire, which is the bridge connecting the luminous chip and the welding point, and plays a decisive role in the service life of LED lamp bead. So how to identify the purity of gold thread?