One-stop PCB Assembly Solutions


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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

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We conduct professional functional testing for each product to ensure all components are operating correctly, enhancing the product’s reliability and safety.

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Testing & Inspection

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.

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.

LEARN MORE ABOUT US

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)

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

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

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 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 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.

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.

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.

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 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.

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.

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.

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.

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Services

PCB Assembly

SMT Assembly Services

Prototype PCB Assembly

Turnkey PCB Assembly

Conformal Coating

PCBA Manufacturer

PCBA OEM/ODM

PCB & PCBA Manufacturing Capabilities

PCBA

Contact Info

Email:sales@tengxinjie.com

WhatsApp +86 18098927183

WeChat +86 18098927183

Address:6th Floor, Building 11, Tangtou Nangang Industrial Park, Shenzhen, China