Types of welding for small microswitches
1. Small micro switches are manually welded one by one. The advantage is that the welding of each component can be accurately grasped. The disadvantage is that it is too Time-consuming.
2. The wave soldering of the pins has the advantage of low price and time-saving and labor-saving. Disadvantage: As components are getting smaller and PCBs are getting denser today, the potential for bridging and shorting between solder joints increases.
3. SMD reflow soldering, the advantage of this process is that the temperature is easy to control, oxidation can be avoided during the soldering process, and the manufacturing cost is easier to control. The disadvantage of small micro switches is that the solder slump will also occur during the welding heating process. This situation occurs in both preheating and main heating. When the preheating temperature is in the range of tens to hundreds, it is one of the components in the solder. The solvent will reduce the viscosity and flow out. If the outflow tends to be strong, the solder particles will be squeezed out of the gold-containing particles outside the welding area at the same time. solder balls.
1. Ultra-small, lightweight and high-precision.
2. M2mm type with general purpose screws can be used.
3. The structure with formed terminals and reference distance at the same time makes it difficult for solder and flux to penetrate into the inside of the switch.
4. A low-power circuit type (Au clad contact) suitable for small voltage and current loads is also available.
5. Self-standing type terminal, easy to install on the printed board. The switch body is independent with respect to the printed board of 1.2~1.6mm.
6. There are also a series of right-angled and left-angled printed board terminals.
7. Compliant with RoHS directive.
