BTOER Soldering Practice Smd Circuit Board Led Electronics Project Diy Kit Smt Pcb

Feature 1. SMD rotating water lamp SMD component welding practice board 2. Skill training practical training kits welding DIY in order to improve the welding skills of electronics majors and electronics enthusiasts 3. Referring to the packaging type of SMD components in the electronic product assembly and debugging skills competition this SMD welding practice board is specially designed to improve the welding level and speed. 4. International standard plate all pads are tin-plated high-strength fire-proof and anti-fall material which can be disassembled and assembled repeatedly. 5. The design of the PCB board is reasonable and the commonly used SMD components are used. Specification 1. Board size: 90*60MM 2. Board thickness: 1.6mm 3. Board material: international standard board all pads are tin-plated high-strength fireproof and anti-fall material which can be disassembled repeatedly. 4. The design of the PCB board is reasonable and the commonly used SMD components are used. 5. The 3 columns of components on the left and right are used to practice welding and each column has a test point. 6. The circular circuit in the middle is a running water lamp circuit which is composed of CD4017 NE555 and light-emitting diodes. It can work after the welding is correct. 7. The back of the circuit is also used and there is a ruler which is convenient for measuring components. There are PCB wire examples which are convenient for PCB design and use. 8. The working voltage of the circuit is 3~12V 9. Number of components: 125; number of soldering joints: 274; length of solder used: 35CM (diameter: 0.6mm); sample welding time: 35 minutes Packing list: 1 set (125 pcs)*Component Soldering Set