FR4 through-hole double-sided board PCB is a printed circuit board made of FR4 epoxy glass fiber substrate, featuring double-sided wiring and through-hole technology. The FR4 material provides a stable base with excellent mechanical and electrical insulation properties. Both sides of the board are equipped with conductive circuits, connected by metal-plated through-holes (vias) that enable electrical continuity between the two layers. It is designed to accommodate through-hole components (such as resistors, capacitors, and connectors) which are inserted into pre-drilled holes and soldered to the pads on both sides, making it suitable for small to medium complexity electronic circuits.​

Core Characteristics​

FR4 substrate foundation: Utilizes FR4 material, known for its high strength, good heat resistance (operating temperature typically -55℃ to 130℃), and stable electrical insulation, ensuring structural and performance reliability.​

Double-sided wiring with through-holes: Two layers of conductive circuits connected by plated through-holes, enabling signal transmission between layers and supporting basic circuit integration.​

Through-hole component compatibility: Designed for through-hole mounting, with drilled holes and corresponding pads to secure and solder traditional through-hole components.​

Main Advantages​

Cost-effectiveness: FR4 is an economical substrate material, and the double-sided through-hole design involves simpler manufacturing processes (compared to multi-layer or SMT-only boards), resulting in lower production costs, ideal for budget-sensitive projects.​

Ease of assembly and repair: Through-hole components are easier to manually insert, solder, and replace, facilitating assembly in small-scale production or repair scenarios, especially suitable for hobbyists, prototyping, or low-volume manufacturing.​

Mechanical robustness: Through-hole soldering creates strong mechanical bonds between components and the board, enhancing resistance to vibration and mechanical stress, making it suitable for industrial equipment or devices subject to physical impact.​

Versatility: Compatible with a wide range of traditional through-hole components, meeting the needs of various electronic applications such as power supplies, audio equipment, and basic control circuits.​

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