Supply Chain Management
Best Electronic Component Supplier In China
◆ All Kinds of Electronics Component Sourcing
◆ Turnkey SMT Assembly
◆ Cost Effective Price
◆ One to one service
◆ Reliable Supplier Partner
If you have previously ordered a PCB for assembly, you may have experience submitting a parts list (Bill of Materials /BOM) that contains all the components that need to be welded or assembled onto the board. The exact process of selecting, sourcing and purchasing electronic components for the PCBA is known as component procurement services. If you need this service, Ulectronics will provide it for you!
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Our components sourcing Advantages
Ulectronics has a comprehensive and efficient ERP based parts procurement system with dynamic and effective market information and data collection capabilities. We utilize the latest PCB component manufacturers and material management technologies to optimize our supply chain and products. Our experienced purchasing team members have over a decade of experience and work with ERP systems to ensure that the required components for your project come from all over the country, always with the best balance between product performance, price and delivery time.
Reliable Supplier Partner
With more than 20 years of operating experience, we have established strong partnerships with many parts manufacturers and distributors around the world, including well-known companies such as DigiKey, Mouser, Arrow, Avnet, Future Electronics and Farnell. This advantage allows us to efficiently search and source rare, outdated and short lead time components in the electronic market to meet the needs of our customers. In addition, renowned component manufacturers ensure the highest quality of our products. You can rest assured that when you choose us, you are choosing a trusted supplier dedicated to delivering best-in-class components for your project.
Frequently Asked Questions
In short, an appropriate amount of solder paste is coated on the solder pad of the PCB, and then the chip component is placed on the printed circuit board at the specified position, and finally the printed circuit board with the attached component is welded through the reflux oven.
"Yes". We strive to provide customers with fast turnaround PCBA services in various ways to meet your needs for fast turnaround PCBA
Standard quickturn times vary depending on the type and number of PCB components. Here are some examples.
1) Fast transfer PCBA service time is 1-5 days.
2) PCB assembly alone takes 1 week.
3) Turnkey PCB assembly or mass production time is 2-3 weeks.
4) Take 4 to 10 weeks for turnkey box assembly.
Below is a brief overview of some of the factors that affect the cost of PCB assembly.
1) Technology used: The assembly process can use surface mounting or through hole technology. Sometimes, some components may require the use of both technologies, but this increases the cost.
2) The number of layers of the board: The cost of a single-sided PCB component is usually lower than the cost of a double-sided or multi-layer PCBA.
3) Component size: Usually, using smaller components and making densely assembled boards will increase the cost.
4) The total number of components.
5) Compliance: Frequent multiple testing to ensure assembly compliance also adds to the cost.
6) Required process: Some PCB components may require a series of processes, such as wave soldering, X-ray inspection, automatic optical inspection, manual welding and other processes. These can add significantly to costs.
7) Flexible or rigid PCB components: Generally, the cost of flexible PCB components is higher than the cost of rigid PCB components.
8) Conformal coating: Cost is also affected by conformal coating requirements. The number of layers of conformal coating affects the cost.
9) Testing: From thermal cycling to circuit testing, many tests need to be carried out before shipping.
10) Packaging requirements: Special packaging requirements may lead to increased costs. Delivery: Costs may increase if expedited delivery times are required.
We can follow these steps to find a reliable PCBA supplier with the best PCB assembly services:
1) Find 5-10 PCB assemblers, view their experience, certification and customer reviews, and then narrow down to 3;
2) Send documents to 3 PCBA suppliers, check their prices, and understand their services after communication;
3) Select the best PCBA manufacturers to start trial orders.
Do you offer testing and inspection services for PCB assemblies?
Yes, we do all kinds of tests and inspections for printed circuit board assembly.
1) First piece inspection
2) Solder paste inspection
3) Automatic Optical Inspection (AOI)
4) Visual inspection
5) BGA X-ray examination
6) Incoming quality control
7) Process quality control
8) Quality assurance
9)ICT(Online Testing)
10)Functional Testing (FCT)
11) PCB on/short test
12) Flying probe test
Typical PCBA board processes include SMT assembly, PTH assembly, and manual assembly. But it takes a lot of small steps, tests, and checks.
There are many devices for manufacturing PCBA and manufacturing PCBS. The main equipment is listed here.
In the pcb assembly process, the following production equipment is required.
1) PCB cleaning machine
2) Solder paste automatic printing machine
3) Solder paste detection (SPI) machine
4) SMT machine
5) reflow soldering machine
6) Wave soldering machine
7) AOI test
The following production equipment is required in the PCB production process:
1) Film exposure machine
2) Drilling machine
3) Laminating machine
4) Grinding machine
5) Laminating machine
6) LDI exp
As mentioned above, PCB is short for printed circuit board. It is the carrier of electronic components. All components are connected via PCB to achieve electronic functions. PCB assembly is short for printed circuit board assembly. It refers to the process of welding components to the PCB. PCBS and components have their functions, but they only work as fully functional products after they are all soldered together.
More value-added services
At the start of your project, our team of skilled engineers thoroughly review your project documentation and develop a robust procurement strategy to provide viable component alternatives when necessary. Once components are purchased, our highly trained IQC personnel carefully inspect all purchased PCB components to ensure strict quality control, adhering to the MIL-STD-105E AQL0.010-0.10 standard. Our commitment is to use only 100% original and new components, ensuring the highest quality and reliability of the final product.
Cost Effective
Thanks to our large and trusted supply chain, we can obtain SMT components and PTH components from suppliers at the lowest price and quote them to our customers at a very low profit.
Great Customer Service
Our experienced team of sales, engineers and buyers will always quote quickly and provide relevant information if required.