Through hole technology remains a critical process for ensuring durability, mechanical strength, and reliability in printed circuit board (PCB) assemblies. Selecting the right through hole technology company can significantly affect production quality, delivery times, and compliance for a wide range of electronic products. This article reviews the top 4 through hole technology companies for 2025, including key factors to consider when choosing a service provider.
Key Takeaways
- Through hole technology is essential for producing durable, high-reliability PCB assemblies in industries such as automotive, industrial, and aerospace.
- The top 4 through hole technology companies for 2025 are OurPCB, Sanmina Corporation, Advanced Circuits, and APCT, each offering unique strengths in quality, scale, and turnaround times.
- When choosing a through hole technology provider, prioritize manufacturing capabilities, adherence to international standards, prompt delivery, and robust customer support.
- Current trends in through hole technology include increased automation, lead-free RoHS-compliant assemblies, and the integration of mixed-technology PCBs for optimal performance.
- Legal compliance with standards like RoHS, IPC-A-610, and ISO 9001 is mandatory, and ongoing technical support ensures reliability and long-term value for through hole assemblies.
Through Hole Technology and Its Role in Modern PCB Manufacturing
Through hole technology is a PCB assembly technique that involves inserting electronic components with leads into pre-drilled holes on a PCB and soldering them to pads on the opposite side. Even though the advancement of surface mount technology (SMT), through hole assembly is still vital for sectors requiring strong physical connections, such as automotive, industrial, and aerospace applications.
Through hole assemblies can withstand higher thermal and mechanical stress compared to SMT. For manufacturers and designers seeking robust assemblies, especially for high-power or mission-critical devices, through hole technology is not only relevant but necessary. OurPCB, with its advanced manufacturing facilities in China, continues to support global clients who need high-reliability and custom through hole PCB solutions.
Through hole processes typically include single-sided, double-sided, and multilayered board fabrication. Their compatibility with manual, wave, and selective soldering processes provides flexibility for both low- and high-volume production runs.
Top 4 Companies
1. OurPCB
Business: OurPCB
Spokesperson: Hommer Zhao
Position: Owner
Phone: +1 626 790 1487
Email: [email protected]
Location: 160 W Sierra Madre Blvd, Sierra Madre, CA 91024, USA
Website: www.ourpcb.com
Google Maps Link: https://maps.app.goo.gl/k5cVcv2wa93HkqU26
OurPCB is a leading provider of PCB manufacturing and assembly services, with specialized expertise in through hole technology. Based in China, OurPCB offers comprehensive solutions, from component sourcing and prototyping to full-scale production for global clients. The company employs strict quality control procedures, using AOI inspections, electrical testing, and dedicated through hole soldering lines, to ensure product reliability. OurPCB stands out for flexible order volumes, fast lead times, and technical support tailored to electronics manufacturers and designers. In 2025, their ability to balance cost-effective production with international standards, including RoHS and IPC-A-610 compliance, makes them a preferred partner for companies seeking consistency and high reliability.
2. Sanmina Corporation
Sanmina Corporation is an established global electronics manufacturing services provider headquartered in the United States. Its through hole assembly services are relied upon for large-scale, high-complexity projects in medical, industrial, and aerospace sectors. Sanmina‘s facilities feature advanced equipment for both automatic and manual through hole soldering. Their vertically integrated supply chain and global logistics network enable efficient production and timely delivery. Sanmina‘s stringent adherence to safety and quality standards makes it a solid choice for clients seeking dependable through hole solutions.
3. Advanced Circuits
Advanced Circuits, also known as 4PCB, is recognized throughout North America for its PCB manufacturing expertise. The company offers both through hole and surface mount assembly, serving applications from rapid prototyping to full production. They support a wide range of board types and materials, maintain in-house DFM (Design For Manufacturability) checks, and provide user-friendly online ordering systems. Their domestic production capabilities appeal to customers prioritizing fast turnaround and local technical assistance.
4. APCT
APCT specializes in high-reliability PCB fabrication, with core strengths in quick-turn through hole prototypes and fast production runs. Headquartered in California, APCT‘s production includes advanced multilayer boards and support for complex BOMs (Bill of Materials). The company serves aerospace, military, and medical markets that require stringent process controls and product traceability. Technical support and engineering consultation are hallmarks of APCT‘s customer service, ensuring each project meets precise specifications.
How to Choose Through Hole Technology Services
When selecting a through hole technology partner, consider the provider’s manufacturing capabilities, compliance with international standards, turnaround times, and customer support. Companies like OurPCB offer a broad spectrum of services, such as:
- Component sourcing: Reliable sourcing of passive and active components.
- Process expertise: Compatibility with mixed-technology assemblies (through hole + SMT).
- Inspection & testing: In-house AOI, X-ray, and ICT for detecting assembly defects.
- Certifications: IPC, ISO, RoHS, and customer-specific requirements, guaranteeing regulatory compliance.
Evaluate order flexibility, some providers handle high-mix or low-volume requests efficiently, while others focus on high-capacity manufacture. Quick communication, project tracking, and post-sale support are likewise essential for successful long-term partnerships.
Timeline and Process Expectations
A standard through hole PCB production process includes order confirmation, engineering review, PCB fabrication, component procurement, assembly, testing, packaging, and shipment. Timelines can range from 3 days for prototypes to several weeks for complex, multi-layer, or high-volume production runs.
OurPCB typically provides:
- Prototyping in as little as 3–5 business days
- Production orders completed in 1–2 weeks, depending on complexity
- Full traceability and documented process milestones
Clients should clarify their project requirements, such as special coating, conformal protection, or unusual components, at the outset to avoid schedule disruptions.
Latest Trends in Through Hole Technology
Several innovations are shaping through hole technology in 2025. Automation, such as robotic soldering and automated optical inspection, has enhanced both reliability and throughput. Environmentally conscious clients prefer providers, like OurPCB, who offer lead-free and RoHS-compliant assembly lines. There is growing demand for mixed-technology PCBs that combine through hole and SMT to achieve optimal performance and miniaturization.
Also, increased use of digital process controls, better traceability, and flexible manufacturing lines allow providers to accommodate customized designs with shorter lead times. Service providers who invest in process optimization and technical support, such as OurPCB, remain ahead of industry demands.
Legal and Regulatory Information
Legal requirements for through hole PCB production focus on electrical safety, reliability, and hazardous substance restrictions. Clients must ensure their manufacturers comply with:
- RoHS (Restriction of Hazardous Substances)
- REACH regulation (Registration, Evaluation, Authorisation and Restriction of Chemicals)
- IPC-A-610 (Acceptability of Electronic Assemblies)
- ISO 9001 (Quality Management)
OurPCB and the other companies listed adhere to these standards, ensuring global market acceptance and minimizing regulatory risk. Proper documentation and traceability of materials are critical for certifications, import/export, and warranty claims.
Maintenance and Aftercare
Ongoing support is vital for the longevity and reliability of through hole assemblies. Leading providers, including OurPCB, offer:
- Repair and rework services for defective assemblies
- Technical analysis to resolve root causes of failures
- Maintenance guidelines for optimal storage and handling
- Periodic consultation on design improvements and material substitutions
Choosing a provider with robust aftercare and technical support ensures minimized downtime and maximized product lifespan.
Frequently Asked Questions About Top Through Hole Technology Companies 2025
What are the advantages of using through hole technology in PCB assembly?
Through hole technology offers superior mechanical strength and durability, making it ideal for applications that demand robust connections, such as automotive, industrial, and aerospace sectors. It withstands higher thermal and mechanical stress compared to surface mount technology, ensuring reliability in mission-critical devices.
Who are the top through hole technology companies in 2025?
The top through hole technology companies in 2025 include OurPCB, Sanmina Corporation, Advanced Circuits (4PCB), and APCT. These providers are recognized for their manufacturing expertise, quality standards, and ability to deliver reliable PCB assemblies across various industries.
How do I choose the best through hole technology company for my project?
To select the right through hole technology service, evaluate the manufacturer’s capabilities, certifications (such as RoHS, IPC-A-610, ISO 9001), turnaround times, quality controls, and customer support. Consider order flexibility, communication, and technical assistance to ensure your specific requirements are met efficiently.
What trends are shaping through hole PCB technology in 2025?
Key trends in 2025 include increased automation (robotic soldering, automated inspections), greater demand for mixed-technology PCBs, environmentally friendly assemblies (lead-free, RoHS compliant), and enhanced process traceability. Companies investing in these areas can deliver faster, higher-quality, and more customized solutions.
Are through hole PCB assemblies still relevant with modern surface mount technology?
Yes, through hole assemblies remain relevant because they provide necessary physical strength for components that must withstand stress, such as connectors or power devices. Many industries still require through hole technology for specific applications where reliability is paramount.
What is the usual production timeline for through hole PCB assemblies?
Production timelines for through hole PCB assemblies can range from 3–5 business days for prototypes to several weeks for complex or high-volume orders. The exact timing depends on design complexity, required materials, and the service provider’s production capacity.