Lighting Diode Patch Lamp Bead

Glowing diode is closely related to various products in life today, and it is inseparable. Products that can often appear in the glow diodes include home decoration lights, computers, billboards, lights and indicators on the road, toys and other products. The most commonly used products are patch 2835 lamp beads. The patch LED is affixed to the surface of the line board, suitable for SMT processing, can be returned welded, and the patch -type LED solves problems such as brightness, perspective, flatness, reliability, consistency, etc. It has the advantages of strong vibration resistance, low welding point defect rate, and good high -frequency characteristics. It encapsulates more LED chips on a smaller area and uses lighter PCB and reflective layer materials to show that the reflective layer needs to be filled. There are fewer epoxy resins. By removing heavier carbon steel material pins and reduced size, the product weight can be easily reduced by half. The volume of electronic products is reduced by 40%, one 60%, and the weight is reduced by 60%, 80%, and finally makes the application more perfect. So how to distinguish its advantages of 2835 patching beads? 1. Look at the bead bracket, the difference between lamp bead bracket materials: At present, there are aluminum brackets, brass brackets, copper brackets, etc. on the market. , The price difference is dozens of times. Even if it is copper bracket, the price of silver plating is divided into high and low. The market is generally called a good bracket, most of which are made of brass silver plating. 2. The difference between the welding line material: The chip and the bracket use the gold wire welding method to complete the electrode connection. At present, there are two types of alloy lines and pure gold lines on the market. 3. The difference between the chip size: The size of the chip that is usually reported is MIL. If there is no high -power measuring microscope, it is generally difficult to distinguish. We can compare the size of the chip by calculating the area of the chip, such as 23X10, the area of the chip is 230 square MIL, and the size of the chip area is a good way.