One-Stop Solution forPCB Fabrication & Assembly
Unit Circuits is a full-service EMS (Electronic Manufacturing Services) provider based in China, specializing in high-quality, low to medium-volume PCB manufacturing, PCB assembly, and comprehensive electronics manufacturing solutions.
- No MOQ requirements—whether it’s prototypes, small batches, or growing production volumes, we are ready to meet your needs.
- Quick-turn services to reduce time-to-market without compromising on quality.
- Strict quality standards: UL-certified, ISO9001:2015 compliant, and IPC Class 2/3 standards for mission-critical reliability.
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Unit Circuits – Your Trusted PCB Manufacturing Partner in China
At Unit Circuits, our mission is to deliver top-quality PCB manufacturing and assembly services at the most competitive pricing, while building long-term, reliable partnerships with our customers around the world.
With years of experience, Unit Circuits specializes in high-quality, low-to-medium volume production for both PCB fabrication and PCB assembly. Our comprehensive solutions include:
- 1-40 layer PCBs with advanced technologies
- Thru-hole and SMT assembly, including complex BGA assembly
- Component sourcing with reliable supply chain management
- Full turnkey box-build assembly
- Electronics product development and testing
We pride ourselves on achieving “Total Customer Satisfaction”, the core of everything we do. Our procurement, engineering, manufacturing, sales, quality control, and logistics teams work seamlessly to ensure exceptional results at every step of the process.
Years of Experience
Our experienced and collaborative team is dedicated to providing exceptional service and superior products, ensuring your business thrives.
PCB Manufacturing
High-precision production of custom PCBS, ensuring reliability and performance for all applications.
Parts Procurement
Efficient sourcing of electronic components, ensuring timely delivery and competitive pricing for all needs.
PCB Assembly
High-quality, efficient, and reliable electronic manufacturing solutions for your business needs.
PCB Stencil
Essential for precise solder paste application, ensuring optimal PCB assembly performance.
Function Testing
Ensuring all electronic components operate correctly and meet required performance standards.
Box Building
Comprehensive assembly of final product, integrating all electronic and mechanical components.
Tailored for Your Needs
Specialized and specific, our services are customized to meet your precise requirements, ensuring professional and reliable results every time.
All materials are sourced from reputable distributors such as Digi-Key, Mouser, or long-term, reliable domestic stock suppliers.
We can deliver your PCBA projects within as fast as 3 days after all materials are prepared without compromising quality by DHL or UPS.
Whether you need 1pc or 10,000pcs, we’ve got you covered. Our scalable solutions adapt to your production requirements seamlessly.
From manual soldering to wave soldering, we seamlessly integrate processes to meet your exact specifications and deliver the perfect product every time.
Benefit from our advanced nitrogen reflow ovens that enhance solder quality and reliability, ensuring the best possible outcome for your assemblies.
We provide thorough functional testing services to guarantee that your products meet all performance standards before they reach you.
Customized Facility Tours
See our advanced PCB assembly firsthand. Personalized tours showcase how we meet your specific needs with precision and innovation.
Transparent Quality
Witness our stringent quality control and advanced manufacturing. Understand how we deliver reliable results for your projects.
Expert Collaboration
Meet our experts and discuss your unique challenges. Discover how our services can optimize your production and achieve your business goals.
Tailored Solutions
Explore customized solutions that fit your business. Discuss your needs with our team and see how we drive your business forward efficiently.
What Our Customers Say
Branded Partner :
Unit Circuits is one of the leading printed circuit board manufacturers in China, specializing in PCB manufacturing and assembly. In addition to these core services, we offer a comprehensive range of electronic manufacturing solutions, including PCB design, component sourcing, cable assembly, turnkey assembly, box build assembly, functional testing, and more.
If you have any questions regarding our products and services, pricing, MOQ, delivery times, location, quality standards, certifications, or engineering support, please feel free to contact us at any time. Our goal is to be the top PCB manufacturer in China, providing our customers with the best quality, competitive pricing, and outstanding service.
Unit Circuits is a leading PCB manufacturer specializing in small to medium volume production, PCB assembly, and comprehensive electronics manufacturing services. Our offerings include PCB design, PCB layout, SMT and through-hole assembly, material sourcing, turnkey box-build assembly, functional testing, and project management. With a focus on quality, speed, and flexibility, we ensure excellent products, reliable performance, and exceptional customer service to meet the demands of industries worldwide.
As a trusted PCB supplier in China, Unit Circuits has been delivering exceptional PCB manufacturing and assembly services for years, building long-term partnerships with customers worldwide. Many of our clients have chosen to work with us for over a decade because we are reliable, detail-oriented, and quality-driven.
During the RFQ process, our experienced CAM engineers meticulously review all files and designs, proactively identifying any issues to prevent costly mistakes and delays. This ensures a smooth production process and consistent, high-quality results.Our manufacturing facilities are UL-certified and compliant with ISO9001:2015 standards, guaranteeing the highest levels of product quality and reliability. By leveraging our expertise in manufacturing and supply chain management, we help our customers optimize costs, streamline delivery schedules, and meet tight deadlines without compromising quality.
At Unit Circuits, we pride ourselves on delivering on-time, high-quality products and becoming a long-term, reliable partner for your PCB and electronics manufacturing needs.
Yes, absolutely. At Unit Circuits, we specialize in small to medium-volume production of PCB fabrication and assembly. Since our establishment, we have strategically aligned our state-of-the-art equipment, skilled engineering team, and optimized processes to meet the specific needs of small to medium production runs.
What sets us apart is our commitment to flexibility and efficiency—we offer no MOQ requirements, quick-turn services, and a seamless production process to help our customers accelerate their time to market. Our focused expertise ensures consistent high-quality output, competitive pricing, and dependable on-time delivery, making us the ideal partner for prototypes, small batches, and growing production volumes.
Yes, we specialize in quick-turn PCB production with industry-leading speed: PCB bare boards in 1-3 working days and turnkey PCB assembly in 5-10 days, ensuring rapid delivery without compromising quality.
Yes, all our PCBs are fully RoHS and REACH compliant, ensuring they meet strict environmental and safety standards. Our compliance guarantees that your products align with global regulations. For more details, please contact us directly or request our official RoHS and REACH compliance documentation.
Yes, we offer global delivery to your desired location through reliable shipping partners like UPS, FedEx, DHL, as well as standard air and ocean freight. With our extensive logistics experience, we ensure safe, on-time delivery at competitive shipping rates. For further details or customized shipping solutions, feel free to contact us anytime.
Yes, we specialize in manufacturing PCBs that meet IPC-A-600 Class 3 standards and PCB assemblies compliant with IPC-A-610 Class 3. Our rigorous quality control processes and advanced manufacturing capabilities ensure the highest reliability and performance, making us the ideal partner for mission-critical applications requiring superior precision and durability.
Yes, Unit Circuits is a leading PCB manufacturer based in China. Leveraging cutting-edge technology, a skilled workforce, and an efficient supply chain, we deliver high-quality PCBs and assembly services at highly competitive prices. Our location in China allows us to combine advanced manufacturing capabilities with cost advantages, ensuring exceptional value for our global customers.
Absolutely! Unit Circuits is a trusted PCB manufacturer with years of experience serving global customers. Our facilities are certified to ISO9001 and UL standards, ensuring top-notch quality and reliability. Backed by a proven track record, we’ve built long-term partnerships with industry-leading brands worldwide, who rely on us for consistent quality, competitive pricing, and exceptional service.
We have no MOQ requirements for PCB production. Whether you need a single prototype, small batches, or medium-volume production, we are equipped to meet your needs efficiently. Our flexible manufacturing capabilities ensure the same level of quality and precision, regardless of order size—no project is too small or too complex for us.
Yes, we provide comprehensive engineering assistance. With years of experience as a trusted PCB manufacturer, our expert engineers offer Design for Manufacturability (DFM) and Design for Assembly (DFA) support. We optimize your designs to reduce costs, enhance production efficiency, and ensure faster time to market—helping you achieve high-quality results with maximum reliability.
Our standard production lead times are as follows:
- PCB fabrication: 3-7 working days
- PCB assembly: 1-3 weeks
- Full turnkey electronics assembly: 3-5 weeks
Lead times may vary depending on material availability, component sourcing, and project complexity. With our streamlined processes and efficient supply chain management, we prioritize meeting your deadlines while ensuring top-quality results
We provide fast and accurate quotes to meet your needs:
- PCB bare boards: within 1 working day
- PCB assembly with component sourcing: 1-2 working days
- Full turnkey box-build assembly: 3-7 working days
For urgent requests, we offer expedited quoting services and can deliver a quote within a few hours to keep your project moving forward seamlessly. Our efficiency and responsiveness ensure you get the answers you need, when you need them
To produce your printed circuit board, we require the following files and details:
- Gerber files (preferred format) or other standard PCB design files
- Specifications, including:
- PCB material
- Board thickness
- Stack-up details
- Copper thickness
- Surface finish
- Quantity required
Providing complete and accurate information ensures faster processing, precise manufacturing, and high-quality results. If you need assistance preparing your files, our engineering team is always ready to help.
To provide an accurate quote for PCB assembly services, we require the following:
- Bill of Materials (BOM): Detailed component list with part numbers, specifications, and quantities.
- Gerber files: For PCB layout and design.
- Assembly details: Component placement files (Centroid data) and assembly drawings.
- Quantity forecast: Required production volume.
If you have any questions or need guidance preparing these files, our team is here to assist you. Contact us anytime at della.tan@unitcircuits.com for prompt support.
To provide an accurate quote for full turnkey assembly, we require the following information:
- Gerber files: For PCB design and manufacturing.
- Bill of Materials (BOM): Complete component list with part numbers, specifications, and preferred suppliers (if any).
- Assembly instructions: Including placement details, special requirements, and testing guidelines.
- Quantity forecast: Estimated production volume.
- Budget expectations: To align the best solutions with your needs.
If you need assistance or have any questions, our team is ready to help. Contact us anytime at della.tan@unitcircuits.com for fast and professional support.
As an experienced PCB manufacturer based in China, we are excited to share company updates, new product launches, and insights on industry trends, techniques, production processes, standards, and other valuable resources related to printed circuit board manufacturing on our blog.
As a trusted PCB supplier, we cover topics such as PCB design tips, manufacturing and assembly processes, PCB testing methods, materials used in circuit boards (both standard and advanced), PCB classifications, commonly used industry software, and engineering practices in DFM/DFA. We also delve into PCB acceptance standards like IPC-A-600 and IPC-A-610, along with our production expertise in high-tech PCBs and PCBA, including VIPPO, Any-Layer HDI, and BGA assembly. We hope our blog provides you with useful information and that we can become your go-to PCB manufacturer and reliable partner in the future.”
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