Thru-Hole Assembly

LETPCBA specializes in providing high-quality through-hole assembly (DIP plug-in) services for electronic products requiring extremely high reliability, such as industrial control, automotive electronics, and power equipment.

Through-hole assembly technology achieves stable conductivity and secure fixation by inserting components into pre-drilled holes in the PCB and performing wave soldering or hand soldering. It is widely used in high-vibration, high-temperature, and high-current environments.

What is through-hole assembly?

Through-hole assembly, also known as plug-in assembly or DIP plug-in processing, is a traditional assembly method in which the pins of electronic components are inserted through holes in the PCB and soldered to the backside. While surface mount technology (SMT) is widely used in electronics manufacturing, through-hole technology remains indispensable in many high-end applications, particularly for electronic devices subject to mechanical stress, thermal shock, and harsh environments.

Advantages of through-hole assembly

High mechanical strength:

Components are secured through PCB holes with strong vibration resistance, making them suitable for harsh environments such as automotive and industrial applications. Excellent high-temperature resistance:

Suitable for high-power, high-current devices such as power modules and power converters.

Suitable for large electronic components:

Components that require plug-in installation, such as large capacitors, inductors, relays, and transformers.

Easy to maintain and replace:

Plug-in components are more suitable for manual inspection, soldering, and repair, reducing maintenance costs.

Application Industries:

Automotive electronics: Battery management systems (BMS), motor drives, and vehicle control units.

Industrial equipment: PLC controllers, servo drives, and sensor systems.

Energy and power electronics: Inverters, power modules, and charging station control boards.

Medical equipment: Control boards for high-stability instruments and equipment.

Communications equipment: Base station motherboards and network transmission modules.

Military and aerospace: Navigation systems and anti-interference control boards.

Why choose LETPCBA for DIP plug-in processing? Professional DIP production lines equipped with wave soldering equipment and experienced soldering technicians. Strict quality control procedures, 100% visual inspection and functional testing. Supporting small batch prototypes to large-volume production, with flexible delivery schedules. One-stop PCBA services, including PCB manufacturing, component procurement, SMT placement, and complete machine assembly.