How to get PCB Assembly Online Quote & Calculator

Introduction to PCB Assembly and Online Quotes

Printed Circuit Board (PCB) assembly is the process of soldering electronic components onto a PCB to create a functional electronic device. In today’s fast-paced manufacturing world, many companies offer online tools to streamline the process of getting quotes and calculating costs for PCB assembly projects. This comprehensive guide will walk you through the process of obtaining an online PCB assembly quote and using a calculator to estimate your project costs.

Understanding the Basics of PCB Assembly

Before diving into the process of getting an online quote, it’s essential to understand the basics of PCB assembly. A PCB is a flat board made of insulating materials, such as fiberglass or composite epoxy, with conductive copper tracks printed on its surface. These tracks connect various electronic components, such as resistors, capacitors, and integrated circuits (ICs), to form a complete electronic circuit.

The PCB assembly process involves several steps:

  1. Solder Paste Application: Applying solder paste to the PCB pads where components will be placed.
  2. Component Placement: Placing electronic components onto the PCB using automated pick-and-place machines or manual placement.
  3. Reflow Soldering: Heating the PCB in a reflow oven to melt the solder paste and create a permanent connection between the components and the PCB.
  4. Inspection and Testing: Verifying the quality of the soldered connections and testing the functionality of the assembled PCB.

Factors Affecting pcb assembly costs

Several factors influence the cost of PCB assembly, and understanding these factors can help you make informed decisions when requesting quotes and using cost calculators.

1. PCB Size and Complexity

The size and complexity of your PCB design significantly impact the assembly cost. Larger PCBs with more layers and a higher component count will generally be more expensive to assemble than smaller, simpler designs.

2. Component Types and Quantities

The types and quantities of electronic components used in your PCB assembly project also affect the overall cost. Some components, such as high-precision or custom-made parts, may be more expensive than standard, off-the-shelf components. Additionally, higher quantities of components can lead to increased assembly time and cost.

3. Surface Mount Technology (SMT) vs. Through-Hole Technology (THT)

PCB assembly can be performed using two main technologies: Surface Mount Technology (SMT) and Through-Hole Technology (THT). SMT components are smaller and can be placed on both sides of the PCB, resulting in higher component density and lower assembly costs. THT components, on the other hand, have leads that are inserted through holes in the PCB and soldered on the opposite side. THT assembly is generally more time-consuming and expensive than SMT assembly.

4. Assembly Volume and Turnaround Time

The number of PCBs you need to assemble and the required turnaround time also play a role in determining the cost. Higher-volume orders often benefit from economies of scale, resulting in lower per-unit costs. Rush orders with shorter turnaround times may incur additional fees due to the need for expedited processing and shipping.

Steps to Get an Online PCB Assembly Quote

Now that you understand the factors affecting PCB assembly costs, let’s explore the steps involved in getting an online quote.

Step 1: Prepare Your PCB Design Files

To receive an accurate quote, you’ll need to provide the PCB assembly company with your design files. These files typically include:

  • Gerber files: Industry-standard files that contain information about the PCB layers, drill holes, and other features.
  • Bill of Materials (BOM): A list of all the electronic components required for your PCB assembly, including part numbers, quantities, and descriptions.
  • Assembly drawings: Visual representations of your PCB, showing component placement and orientation.

Ensure that your design files are complete, accurate, and in the correct format before submitting them for a quote.

Step 2: Research and Select PCB Assembly Companies

There are numerous PCB assembly companies offering online quote services. Research and compare several companies based on factors such as:

  • Reputation and customer reviews
  • Quality certifications (e.g., ISO 9001, IPC standards)
  • Experience with projects similar to yours
  • Pricing and lead times
  • Customer support and communication

Select a few companies that meet your criteria and proceed to request quotes from them.

Step 3: Submit Your Design Files and Specify Requirements

Visit the websites of your chosen PCB assembly companies and locate their online quote request form or portal. Upload your PCB design files (Gerber files, BOM, and assembly drawings) and provide additional information about your project, such as:

  • PCB quantity
  • Required turnaround time
  • PCB thickness and copper weight
  • Surface finish (e.g., HASL, ENIG, OSP)
  • Any special requirements or instructions

Be as detailed and accurate as possible to ensure that the quotes you receive are precise and tailored to your specific needs.

Step 4: Review and Compare Quotes

Once you’ve submitted your design files and requirements, the PCB assembly companies will process your request and provide you with detailed quotes. Review each quote carefully, paying attention to:

  • Total cost and cost breakdown
  • Lead time and shipping options
  • Any additional fees or charges
  • Terms and conditions

Compare the quotes from different companies to determine which one offers the best value for your project. Don’t hesitate to ask questions or request clarifications if any aspect of the quote is unclear.

Step 5: Finalize Your Order

After selecting the most suitable PCB assembly company based on their quote, proceed to finalize your order. This may involve:

  • Confirming the project details and requirements
  • Providing any additional information or files requested by the company
  • Making payment arrangements
  • Agreeing on the delivery timeline and shipping method

Once your order is confirmed, the PCB assembly company will begin the production process, keeping you informed of the progress along the way.

Using a PCB Assembly Cost Calculator

In addition to requesting quotes from PCB assembly companies, you can also use online cost calculators to estimate the price of your project. These calculators provide a quick and easy way to get a rough idea of the assembly costs based on your design specifications.

To use a PCB assembly cost calculator, follow these steps:

  1. Find a reputable online calculator: Look for calculators provided by well-known PCB assembly companies or industry resources.

  2. Input your PCB specifications: Enter the details of your PCB design, such as dimensions, number of layers, quantity, and turnaround time.

  3. Specify component details: Provide information about the types and quantities of components required for your assembly, if applicable.

  4. Review the estimated cost: The calculator will generate an estimated cost for your PCB assembly project based on the provided specifications.

Keep in mind that online calculators provide estimates and may not account for all the factors that affect the final cost of your project. Always request formal quotes from PCB assembly companies for the most accurate pricing information.

PCB Assembly Cost Comparison

To help you understand the potential costs associated with PCB assembly, here’s a table comparing approximate prices for various project specifications:

PCB Size (mm) Layers Quantity Turnaround Time Estimated Cost
50 x 50 2 100 10 days $500
100 x 100 4 500 7 days $2,000
150 x 150 6 1000 5 days $5,000
200 x 200 8 2000 3 days $12,000

Note: These prices are for reference only and may vary depending on the specific requirements of your project and the PCB assembly company you choose.

Frequently Asked Questions (FAQ)

  1. What is the minimum order quantity for PCB assembly?
  2. The minimum order quantity varies between PCB assembly companies but typically ranges from 1 to 100 units. Some companies may offer lower minimum quantities for prototyping or small-batch production.

  3. How long does it take to receive a PCB assembly quote?

  4. Most online quote requests are processed within 24 to 48 hours. However, the actual time may vary depending on the complexity of your project and the workload of the PCB assembly company.

  5. Can I request a quote for a partial assembly?

  6. Yes, many PCB assembly companies offer partial or consigned assembly services, where you provide some of the components, and they source the rest. Be sure to specify which components you’ll be supplying when requesting a quote.

  7. What if I need to make changes to my design after receiving a quote?

  8. If you need to make changes to your PCB design after receiving a quote, inform the PCB assembly company as soon as possible. They will review the changes and provide you with an updated quote if necessary.

  9. How can I ensure the quality of my PCB assembly?

  10. To ensure the quality of your PCB assembly, choose a reputable company with experience in your industry and relevant quality certifications. Additionally, provide clear and accurate design files, specify your quality requirements, and maintain open communication throughout the production process.


Getting an online PCB assembly quote and using cost calculators can simplify the process of planning and budgeting for your electronic projects. By understanding the factors that affect assembly costs, preparing your design files, and carefully comparing quotes from multiple companies, you can make informed decisions and ensure the success of your PCB assembly endeavors.

Remember to prioritize quality, reliability, and customer support when selecting a PCB assembly partner, as these factors can have a significant impact on the overall outcome of your project. With the right approach and a trusted assembly company by your side, you can bring your electronic designs to life efficiently and cost-effectively.