Piranha lamp bead is a package, square, transparent resin package, four pins, there is a missing pin at the negative pole. The piranha lamp bead is an astigmatism type LED, the luminous angle is greater than 120 degrees, the luminous intensity is very high, and it can withstand greater power. Piranha lamp beads are mostly used for brake lights and turn signals.

    It is small in size, and the LED is basically a small chip encapsulated in epoxy resin, so it is very small and light. LED power consumption is very low, generally speaking, the working voltage of LED is 2-3.6V. The working current is 0.02-0.03A. That is to say: it consumes no more than 0.1W. At the right current and voltage, LEDs can last up to 100,000 hours.

    Piranha lamp beads are made of non-toxic materials, unlike fluorescent lamps that contain mercury, which can cause pollution, and LEDs can also be recycled and reused. LEDs are completely encapsulated in epoxy resin, which is stronger than light bulbs and fluorescent tubes. There are also no loose parts in the lamp body, these features make the LED not easy to damage. Among the low-power LEDs, the piranha lamp beads are the brightest, and the piranha LEDs are most used in the light-emitting mode of advertising words.

The packaging process of piranha lamp beads

The packaging of the piranha lamp bead has its particularity. First, the bracket of the piranha lamp bead must be selected. According to the number of LED chips to be placed in each piranha tube, it is necessary to determine the shape, size and depth of the bowl punched in the piranha bracket.

When using the stand, clean it and fix the LED chip in the stand bowl. After drying, the two poles of the LED chip are welded, and then the corresponding die is selected according to the number of chips and the size of the light-emitting angle. Fill the mold with glue, and insert the piranha bracket with the soldered LED chip into the mold. After the glue is dry (dry in an oven), it can be demolded. It is then placed on a rib-cutting die to cut it out, followed by testing and sorting. The technical indicators of piranha lamp beads are the same as those of LEDs packaged in other ways. When multiple chips are packaged on a piranha lamp bead bracket, the related thermal resistance should be considered, and the thermal resistance should be minimized to prolong the service life.

Since the Piranha LED has four legs, there should be four holes in it in order to mount the Piranha LED on the PCB. Because the two electrodes of the LED are connected to the four legs, the two legs are connected to one electrode. When installing, it is necessary to confirm which two legs are positive and which two legs are negative, and then design the PCB.