Purchasing personnel in the process of purchasing, have the connector choice problem, such as the need to consider the transmission speed, signal integrity, performance problems, such as size and shape, but most need to cause our concern is to determine the termination method of connector, this is because most applications need a specific type of technology to match the connector design requirements, So what are the end technologies of the connector?
Connector terminating technologies mainly include through-hole terminating (THT) technology, surface mount terminating (SMT) technology, pin through-hole reflow welding terminating technology, and press-matched terminating technology. The details are as follows:
1, connector through hole terminating (THT) technology
Through-hole terminations were common in the early days, with connectors touching or leading through the holes in the PCB. Through-hole components are best suited for high-reliability products that require stronger connections between PCB layers.
2, connector surface mount end (SMT) technology
Use of surface-mount termination of this technology, the connector can be installed directly on top of the PCB and manual welding in place, can also use the reflow/wave soldering methods should be fixed in position.
3, connector pin through hole reflow welding end technology
The through hole reflow welding end technology of connector is mainly completed by automatic machinery, without manual and wave soldering process. The connectors are loosely fixed in the holes in the plate and placed under the machine so that the liquefied solder flows back to the plate at high temperature. Due to capillary action, the molten solder paste draws the solder into the plate and into the hole, forming a permanent bond between the solder paste and the connector leads, and then the remaining solder is removed.
4, connector pressure matching end technology
Press-fit terminations are usually solder-free, which helps reduce the total cost of connector applications, and it is usually recommended to use these types of connectors with specific tools to ensure that items are inserted evenly and fully in place.
Post time: Sep-09-2022