THT- Through Hole Technology Manual circuit board assembly

THT-Through Hole Technology

tht

THT- Through Hole Technology Manuelle Leiterplattenbestückung

THT- Through Hole Technology Manual circuit board assembly

As an optimal complement to fully automatic PCB assembly, we offer conventional Through Hole Technology (THT). This means we are ideally positioned for the often desired mixed assembly of PCBs- with a combination of SMD and THT components.

Manual circuit board assembly

In THT production, the printed circuit board is assembled manually with great sensitivity. Our experienced employees insert wired components through the contact holes and solder them. In this process, the entire assembly is passed over a hot stream of liquid solder in a wave soldering machine. The solder wave wets the inserted pins with solder ¬– and thus establishes the electrical contact with the conductor paths. We can cover a soldering area of 400 x 400 mm.

THT soldering points that are difficult to access

Our automatic selective soldering system SPA 440 EVO and manual soldering are used for THT soldering points that are difficult to access, for example with double-sided assembly.

THT-equipment

Automatic selective soldering system SPA 440 EVO
Hand soldering is also possible

advantages

Advantages of selective soldering

selective soldering

With selective soldering, THT components can be subsequently soldered onto already assembled PCBs. The soldering parameters for each solder joint can be set individually. This means that selective soldering is mainly used when full-surface soldering methods such as wave soldering are not possible due to the process or when high precision and quality are required.

Other advantages of selective soldering are:

Individually programmed

Each solder joint can be individually programmed; flux quantity and soldering time can be precisely adjusted

High quality

High quality of the solder joint (without overheating of components)

High process stability

High process reliability and stability

Low thermal stress

Low thermal stress for the PCB and adjacent components

Guaranteed reproducibility

Increased flexibility

Increased flexibility: enables soldering of PCBs containing masses that are difficult to process with wave soldering systems.

Compared to the SMT process, the manual THT process is much more time-consuming.
Nevertheless, it is still indispensable for certain components, such as plugs and switches.