THTliitokset

THTliitokset refers to Through-Hole Technology (THT) in electronics manufacturing. This method involves inserting component leads through holes drilled in a printed circuit board (PCB). Once the leads are in place, they are soldered to conductive pads on the opposite side of the board, creating a secure electrical connection. THT is a well-established technique, often contrasted with Surface Mount Technology (SMT), where components are attached directly to the surface of the PCB without the need for drilled holes.

The process for THT assembly typically involves several steps. First, components are manually or automatically inserted into the designated holes on the PCB. Following insertion, the boards are usually passed through a wave soldering machine, where molten solder flows over the underside of the board, wetting the component leads and pads to form strong joints. Alternatively, selective soldering or manual soldering can be employed for specific applications or repair.

THT components are generally larger and more robust than SMT components. This makes them suitable for applications requiring higher mechanical strength, such as connectors, power components, and switches. They can also handle higher currents and voltages. Despite the rise of SMT, THT remains relevant in many areas of electronics production due to its reliability and ease of repair. The larger component size can also simplify manual assembly and inspection processes.