Fanway specializes in delivering efficient and reliable end-to-end PCB assembly services, precisely tailored to your unique requirements to accelerate your product success.
Our Precision Through‑Hole Technology THT PCB Assembly fully capitalises on these inherent advantages, delivering robust assemblies that SMT alone cannot achieve.
Mechanical Strength
Leads pass through the PCB, providing outstanding resistance to vibration, shock, and repeated insertion/removal. This through-board connection ensures reliability in harsh environments.
Power & Thermal Performance
Ideal for high-current, high-heat components such as transformers and large capacitors. The leads act as thermal conduits, effectively dissipating heat from critical parts.
Ease of Repair & Rework
Larger solder joints allow components to be removed and replaced manually with standard soldering tools. This simplifies field repairs and reduces scrap costs.
Through‑hole technology (THT) is a PCB assembly method where component leads are inserted into pre‑drilled holes on the board and soldered on the opposite side. This creates a mechanical bond that passes through the board itself, delivering superior pull‑out strength and thermal conductivity compared to surface‑mount alternatives. THT remains essential for connectors, power devices, and any application subject to vibration, shock, or high current.
Every Precision Through-Hole Technology THT PCB Assembly follows a controlled workflow to ensure repeatable quality:
1. Drilling & Hole Metallization
Precise hole positioning with copper plating on hole walls to ensure reliable layer‑to‑layer conductivity.
2. Component Insertion
Automated or manual placement of axial/radial leads, DIPs, and connectors into drilled holes with correct orientation and stand‑off height.
3. Wave or Selective Soldering
Boards pass over a molten solder wave (for high‑volume) or receive targeted solder application (for mixed assemblies) with controlled temperature profiles.
4. Lead Trimming & Post‑Solder Inspection
Excess lead length is trimmed, followed by 100% automated optical inspection (AOI) to verify solder fill, wetting angle, and absence of bridges or voids.
5. Functional Testing & Lot Traceability
Electrical testing verifies circuit performance, while batch‑level traceability links every component to its original lot for full lifecycle accountability.
Our Precision Through-Hole Technology THT PCB Assembly serves applications where SMT alone is insufficient:
Aerospace & Defense
Avionics, radar systems, and MIL‑SPEC electronics requiring solder joints that survive extreme vibration and thermal cycling.
Automotive Electronics
ECU power stages, battery management systems, and under‑hood modules that demand high‑current carrying capacity and mechanical resilience.
Industrial Power Modules
Motor drives, servo controllers, and power supplies where large transformers, relays, and electrolytic capacitors must be securely mounted.
Medical Devices
Diagnostic equipment and patient monitoring systems where connection reliability is non‑negotiable, with full process traceability for regulatory compliance.
Heavy‑Duty Connectors
I/O interfaces, backplane connectors, and test points that undergo repeated insertion/removal cycles over decades of service.
Three factors distinguish our Precision Through-Hole Technology THT PCB Assembly from general assemblers:
Process Capability
We operate mature wave soldering and selective soldering lines, and we are skilled in handling complex mixed-technology boards (THT + SMT). Our processes ensure consistent wetting and void-free joints across both technologies.
Quality Certifications
We comply with IPC-A-610 and hold ISO 9001, AS9100 (aerospace), and ISO 13485 (medical) certifications. These accreditations demonstrate that our production and quality systems meet the highest industry standards.
Industry Experience
With over a decade of focused THT assembly, we have served demanding sectors including military, medical, and automotive. Our track record includes successful delivery of assemblies that pass stringent qualification tests for mission-critical applications.
Selecting Fanway for your Precision Through-Hole Technology THT PCB Assembly gives you a partner with depth in both process and application:
1. 12+ Years of Dedicated THT Experience
We have focused exclusively on through‑hole and mixed‑technology assembly since our founding. Our team understands the nuances of thermal management, solder joint geometry, and component handling that general assemblers often overlook.
2. Certified for High‑Reliability Sectors
Our facility meets ISO 13485 (medical) and IATF 16949 (automotive) standards alongside IPC and ISO certifications. We audit our processes to the same standards our clients' end‑products are held to.
3. End‑to‑End Project Ownership
From DFM review for hole sizing and annular ring design through procurement, assembly, and final test—we own the full THT workflow. One point of contact, one quality standard.
4. Responsive Support for Prototype & Production
Quick‑turn prototype support for design validation, scaling to high‑volume runs with consistent process parameters. No minimum order restrictions for engineering samples.
5. Supply Chain Visibility
We maintain direct relationships with authorized distributors for THT‑specific components—connectors, power semiconductors, and passive devices—reducing procurement risk and lead‑time uncertainty.
Address
Building 3, The First Industrial Zone of Mingjinhai, Shiyan Street, Bao'an District, Shenzhen, Guangdong, China, Zip Code:518108
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