The printed circuit board terminal block of the screw connection type has always occupied an important position in the electronic industry and has now become an important component of the printed circuit board. Its structured design takes into account the features of convenient wiring and reliable screw connections.
The spring-connected printed circuit board terminals are divided into two types: pull spring connection and butterfly spring connection. The pull-back spring terminal and the screw terminal can replace each other, which greatly increases the flexibility.
Regardless of the connection terminal, they all have the following advantages:
1. Large wiring capacity, can adapt to various wiring requirements.
2. The body of the thread clamp body is decoupled from the welding pin mechanically, that is, because the thread clamp body and the welding pin are not connected together, the torque when tightening the screw will not be transmitted to the welding point.
3. The solder pin has four prisms and the ends shrink and taper. When inserting the solder hole, it is prevented from turning at will. Use solder solution to dissolve the solder holes.
4. The solder pin is a copper alloy, and the solder pin has no dirt to ensure the long-term reliability of the solder.
5. Tinned solder pins for easy soldering.
6. With cooling channels.
7. The tip of the solder pin shrinks and is easy to install.
Users can not only choose different parameters according to their needs, such as needle position and needle distance, but also can choose different wiring directions. In practical applications, the layout of the components (such as the position of the PCB in the housing) often limits the printed circuit board terminals. Printed circuit board terminals that provide a variety of different wiring orientations are undoubtedly of practical importance: horizontal, vertical, oblique, and frontal. The more choices offered, the more helpful the actual operation.
Printed circuit board terminals can even provide multi-layer wiring (1st to 4th layer) terminals. The arrangement between the layers is very compact and staggers in the vertical direction by half a stitch. This terminal perfectly meets the compact, space-saving design needs of the layout.
The screw connection terminal can be compatible with the spring connection terminal. The so-called compatibility means that both can be interchanged without changing the layout of the printed circuit board. This greatly improves the product's adaptability and reduces costs to a large extent.