One-stop PCB Assembly Solutions
Leading PCB assembly manufacturer offering turnkey solutions, PCB fabrication, prototype boards & conformal coating PCB protection. Expert PCB manufacturing from design to delivery.
From PCB Fabrication to Final Assembly

PCB Fabrication
From single-sided to multilayer boards, we provide a full range of PCB design and manufacturing services. We ensure stable and reliable circuit boards to meet customer needs across different industries.

PCB Assembly Services
We provide complete assembly services, from component procurement to final product assembly, ensuring stable product performance and high-quality standards.

Conformal Coating
We support a wide variety of coating materials to meet your specific application requirements, including, HumiSeal® Series, MG Chemicals & Electrolube.

Testing & Inspection
We conduct professional functional testing for each product to ensure all components are operating correctly, enhancing the product’s reliability and safety.
Industries and Applications
Precision in Every Connection, Partnership in Every Project.
Shenzhen Tengxinjie Electronics Co., Ltd., founded in 2015, is a professional PCB assembly manufacturer providing one-stop PCB assembly solutions. We specialize in PCB manufacturing, fabrication, and assembly—from PCB prototype boards to full turnkey PCB assembly services. Our advanced capabilities include conformal coating and precision assembly for diverse industries. Committed to quality and reliability, we partner with global clients to deliver efficient, customized solutions that power innovation and ensure performance in every circuit we build.
Get Your PCBA Quote
After the file and information are submitted, our technical staff will review them and respond to you promptly.(Fields marked with an asterisk* are required)
Why Choose Us
- Experienced PCBA Manufacturer – Years of hands‑on SMT and THT assembly experience
- Strict Quality Control – AOI, X‑ray inspection, and functional testing
- Flexible Order Quantities – Prototype, small batch, and mass production
- Fast Turnaround – Optimized processes to meet tight delivery schedules
- Global Service – Supporting customers in Europe, Middle East, and worldwide
1. From Prototype to Volume Production
Quick-Turn PCB Prototypes: 5-50pcs, supporting complex multilayer & HDI boards
Low-to-Mid Volume: 50-10,000pcs, flexible scheduling
High-Volume Manufacturing: 10,000+pcs, scalable production capacity
2. Flexible Service Models
Consignment Assembly: You supply all components, we provide professional assembly
Partial Turnkey: We source selected components + full assembly
Full Turnkey: Complete solution from PCB fabrication to final assembly & testing
3. Value-Added Services
Free DFM Analysis: Optimize your design for manufacturability
Functional Testing & Programming: Ensure every board meets specifications
Box Build Assembly: Complete product integration and packaging
FAQ
What files and documents do you need to provide for my PCB order?
We require the complete PCB files (Gerber, other PCB files,etc.), Centroid (Pick & Place PNP file, XY data, or other formats), BOM, and all other necessary documents, images, or photos are complete for the assembly process work.
How do you request for the shipping and marking of the parts for the consigned or kitted order?
We hope you can mark on any individual package or box with the corresponding line number on BOM, manufacturer’s part# or customer’s part#, quantities. A detailed packing list is preferred to enable us to count and check upon receipt of your parts.
Can you source some parts for my assembly?
Yes. This practice is called partial Turn-key. You can supply some parts, and we source the rest of the parts on your behalf. We will ask for your approval for anything that is not sure at our side. In case parts crossing or substitution is needed, we will again ask for your final approval.
What types of testing services do you provide?
We offer functional testing, electrical testing, visual inspection, Automatic Optical Inspection (AOI), and other testing services to ensure product quality.
Do you provide visual inspection after assembly?
Yes, we offer comprehensive visual inspection services to ensure the accuracy of component placement and soldering, and that it meets your requirements.
How do you handle the excessive and unused parts?
Excess parts may be present due to our practice of requesting a percentage of overage for consigned or kitted orders, or purchasing extra for turnkey orders. For any unused parts, you can choose to have them shipped back with your PCBA or stored in our warehouse for future orders. The decision is yours.
How do I place my order?
You can submit your order by sending the necessary files (such as BOM, Gerber, Centroid files, etc.) to our designated email address.
How do you ensure the quality of PCBA assemblies?
We strictly adhere to IPC-A-610 and ISO 9001 quality management systems, and use a combination of automated testing and manual inspection to ensure every assembled board meets the required standards.
What if I find any defects or problems after I received your assembled boards?
1)Please provide feedback and describe any defects either online or via email.
2)We would appreciate it if you could return some of the defective PCBs for further analysis.
3)Based on your feedback, we will ask the relevant departments to form research teams and hold meetings to analyze, discuss, and propose appropriate solutions.
What is your turn time on a Turn-key order?
For Turn-key orders, the lead time mainly depends on the speed at which we can source all the necessary components. We will keep you updated through daily email communication. While waiting for all parts to arrive, we will proceed with fabricating the PCBs and preparing the stencil, so assembly can begin as soon as the components are available.
Our Happy Clients!
We have been working together for over two years on several PCB assembly projects. The communication is clear, engineering feedback is professional, and deliveries are always on schedule. Quality consistency is impressive.

Michael Turner
From prototype to mass production, the team provided strong technical support and quick turnaround. Their SMT assembly quality and attention to detail helped us reduce field failures significantly.

David Robinson
Reliable partner for turnkey PCB assembly. Component sourcing, BGA assembly, and functional testing were handled efficiently. We value their transparency and long-term cooperation approach.

James Carter
Die Zusammenarbeit ist professionell und zuverlässig. Besonders schätzen wir die stabile Qualität der Leiterplattenbestückung und die schnelle Reaktionszeit bei technischen Rückfragen. Termine werden stets eingehalten.

Thomas Schneider
Excelente servicio de ensamblaje PCB. El equipo técnico ofrece soluciones rápidas y precisas. La calidad de soldadura y el control de producción cumplen siempre con nuestros estándares internacionales.

Carlos Martínez
Très bon partenaire pour l’assemblage de cartes électroniques. Communication efficace, contrôle qualité rigoureux et respect des délais. Nous apprécions particulièrement leur expertise en production série.
