Products

Resistors

This article details Topfast’s resistor product system and technical advantages, covering high-precision

MCU(Microcontroller Unit)

Topfast offers professional MCU procurement and PCB assembly services, supplying STM32, ESP32,

4-Layer Flexible PCB

4-Layer Flexible PCB

This article introduces Topfast’s 4-layer flexible PCBs, highlighting their high-density routing, dynamic

Single-Sided Flexible PCB

Single-Sided Flexible PCB

This article introduces Topfast’s professional single-sided flexible PCB products, highlighting their advantages,

Automotive PCB Assembly

Automotive PCB Assembly

As a 17-year experienced automotive PCBA specialist, Topfast delivers high-reliability circuit solutions

bom

Bill of Materials (BOM)

Master Bill of Materials (BOM) management: types, structures, and best practices for

Communication PCB Assembly

Professional communication PCB assembly one-stop service provider specializing in high-frequency, high-performance 4G/5G

High frequency pcb board

High Frequency PCB Board

This article provides a detailed overview of Topfast’s technical advantages as a

industrial pcb assembly

Industrial PCB Assembly​

17+ years of industrial PCB assembly expertise – high-precision SMT, rigorous testing

Aerospace PCB Assembly​

Aerospace PCB Assembly​

The special requirements of aerospace PCBAs include material selection for harsh environments,

Wiring Harness

A wiring harness is an integrated electrical assembly consisting of multiple wires,

High Speed PCB

High Speed PCB

High-speed circuit boards are circuit boards used for high-speed signal transmission. They

PCB Assemly FAQ

TopFast provides high quality, on-time delivery of PCBs, PCBAs and one-stop solutions, integrating design, manufacturing, assembly, and sourcing in one global specialized supplier.

1. We constantly introduce new equipment and technology.

2 We use high quality materials to ensure the quality of boards.3 We have more than 25 experienced executives and technicians who have been engaged in PCB production for more than twenty years, with rich experience in production management and professional PCB skills. Because we have an efficient direct sales channel, our overhead is extremely low. Every penny you pay is for the highest quality!

The fastest lead time we can support is 12 hours. 1 hour prompt quote. 4 hours prompt engineering. This depends on your product requirements and quantity. In addition, lead time will be included in your quote.

For small packages, we recommend using an express courier (e.g. DHL, UPS, FedEx and EMS door-to-door service!). This is the fastest but also the most expensive way. For large parcels, ocean freight is the best solution. We can only give you accurate shipping rates if we know the quantity, weight and shipping method details.

Yes. We can lay out the PCB according to your schematic and then arrange the production. Please contact us at Please send your schematic and requirements to op@topfastpcb.com and we will provide a quotation accordingly.

Online: Get a free quote on our website. Send an e-mail to: op@topfastpcb.com with an email containing the following information: name, company, address, phone number, email address, product number, quantity, product time and any other information you would like to share with us. Attach your gerber file.

As a global PCB manufacturer, our factories are located in Guangzhou, China and Shenzhen, China, utilizing the advantages of each region to provide you with the best service.

We do not offer free PCBs, if you want to verify our quality before mass production, it is better to submit a prototype order. After verifying our quality, you can easily place an order for any quantity you need.

Sure. You can place a prototype order first. Use any of the options to check the quality and then let us know if you want to proceed with mass production.

PCB Introduction

PCB (Printed Circuit Board) is a critical foundational component used to connect and support electronic elements, composed of insulating substrates and conductive traces. As a core element of the modern electronics industry, PCBs are used in nearly all electronic devices, serving as an indispensable medium for electrical interconnection between components.
Core Structure of PCB:
Substrate Material: Made of high-performance insulating composite materials such as FR-4, CEM-1, and CEM-3, providing mechanical support and electrical insulation.
Conductive Layer: Constructed from high-purity electrolytic copper foil, precisely etched to form circuit networks.
Soldering System:
Pads: Surface-treated (e.g., gold-plated or tin-sprayed) connection points for reliable component soldering.
Solder Mask: High-temperature-resistant insulating ink to prevent short circuits and oxidation.
Silkscreen Layer: Printed text and symbols for component placement and inspection guidance.
Application Fields:
From consumer electronics (wearables, mobile devices) to industrial equipment (automated control systems), from communication infrastructure (5G base stations) to defense and aerospace (radar systems), PCB technology continues to drive innovation across industries. As electronic devices evolve toward miniaturization and intelligence, PCB technology also advances to meet demands for higher performance and smaller form factors.

Get Your Quote

Which product do you want PCB or PCBA, please fill in the details below to get a quote.