Types of f5 straw hat lamp beads and precautions for use
F5 straw hat lamp bead is a common LED lamp bead with a wide range of applications. According to different usage environments and needs, F5 straw hat lamp beads can be divided into different categories. The following are some common types of F5 straw hat lamp beads and precautions for use:
Spectroscopic and color-separated straw hat LED lamp beads: this kind of lamp beads need to be used according to different categories of BIN level. Different grades of BIN products cannot be mixed on the same product, resulting in poor product consistency. If it is really necessary to mix BIN levels, adjacent BIN levels can be used together, but should be avoided as much as possible.
Anti-static straw hat LED lamp beads: This kind of lamp beads need to take a series of measures to avoid damage to straw hat LED lamp beads by static electricity and surge voltage. The operating table should be equipped with a ground wire, and the operator must wear anti-static gloves and anti-static wrist straps, and ensure good grounding. Before touching LED lamp beads, you must ground the soldering iron or dip soldering equipment, and use an ion fan to eliminate static electricity. It is forbidden to touch the two pins of the straw hat LED lamp bead with bare hands.
Soldering iron soldering and dip soldering straw hat LED lamp beads: This type of lamp beads needs to be operated according to certain welding position requirements. The welding position should be greater than 4mm from the bottom surface of the colloid, and the dip soldering position should be greater than 3mm from the bottom surface of the colloid. It is recommended to use a clamp to fix the soldering to avoid any vibration or external force to the LED.
When using F5 straw hat lamp beads, you should pay attention to comply with the corresponding safety regulations and operating guidelines to avoid potential safety hazards and damage. At the same time, it is recommended to select the appropriate straw hat LED lamp bead type according to the specific use environment and needs, and carry out corresponding operation and protection.
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?