Custom PCB Terminal Block Manufacturer in China

we offer PCB terminal blocks designed for secure and reliable wire connections on your circuit boards. Our range includes various pitches, orientations (horizontal, vertical, angled), and connection types (screw, spring-cage, push-in) to suit diverse applications. They ensure stable electrical performance and simplify assembly, making them ideal for industrial controls, power supplies, and more.

Linkwell Electrics - Your Trusted PCB Terminal Block Manufacturer from China

Linkwell Electrics is a trusted PCB terminal block manufacturer from China, renowned for delivering high-quality, reliable solutions. They offer a comprehensive range of terminal blocks, including screw, spring, and push-in types, along with various accessories tailored for diverse industrial and automation applications. Linkwell emphasizes continuous innovation and customer satisfaction, ensuring efficient and secure electrical connections directly to printed circuit boards.

Various PCB Terminal Block

pcb terminal block

PCB screw terminal block

We offer a robust selection of PCB screw terminal blocks, providing secure and reliable wire connections directly to your circuit boards. Our range includes various pitches, pole counts, and orientations (horizontal, vertical, angled) to meet diverse design requirements. These blocks feature durable screw clamping mechanisms for strong, vibration-resistant terminations, ideal for industrial, power, and control applications requiring dependable electrical performance.

pcb mount terminal block

PCB mount terminal block

We offer a comprehensive selection of PCB mount terminal blocks, perfect for creating robust and reliable wire-to-board connections. Our range includes diverse options like screw, spring-cage, and push-in terminals, available in various pitches and orientations. Designed for easy integration and secure performance, these blocks are ideal for applications across industrial, power, and control systems, ensuring efficient assembly and long-lasting electrical integrity.

pcb terminal block 3 pin

3 pin PCB terminal block

We offer a versatile range of 3-pin PCB terminal blocks, crucial for organizing electrical connections on your printed circuit boards. Available in various pitches (e.g., 3.5mm, 5.0mm, 5.08mm) and connection methods (screw, spring-cage, push-in), these compact units provide secure and reliable wire termination. They are ideal for applications requiring space efficiency and straightforward wiring, from consumer electronics to industrial equipment.

pcb terminal block 2 pin

2 pin PCB terminal block

We offer a versatile selection of 2-pin PCB terminal blocks, essential for compact and efficient wire-to-board connections. Our range includes various pitches like 2.54mm, 3.5mm, and 5.08mm, and styles such as screw, spring-cage, and push-in. These blocks are ideal for power, signal, and data applications requiring reliable and secure connections on your printed circuit boards.

5mm pitch pcb mount screw terminal blocks

5mm pitch PCB mount screw terminal blocks

We offer a comprehensive selection of 5mm pitch PCB mount screw terminal blocks, providing robust and reliable connections for your circuits. Our range includes various pole configurations (2-24 pole), wire entry angles (horizontal, vertical, angled), and color options (green, blue, black). These terminal blocks are ideal for diverse applications requiring secure, easily serviceable wire-to-board connections, ensuring excellent electrical performance and simplifying your design and assembly process.

high current pcb terminal block

high current pCB terminal block

We specialize in high-current PCB terminal blocks, engineered for robust power applications. Our selection offers superior conductivity and thermal management, crucial for managing significant electrical loads. With various pole configurations and connection methods like screw and spring-cage, these blocks ensure secure, stable, and low-resistance connections for demanding industrial, power supply, and automotive electronics.

pcb pluggable terminal block

pCB pluggable terminal block

We offer a versatile selection of PCB pluggable terminal blocks, providing flexible and secure wire-to-board connections. These allow for easy mating and unmating of wiring harnesses, simplifying installation and maintenance. Our range covers various pitches and pole configurations, ensuring reliable performance for diverse applications in industrial controls, power supplies, and telecommunications.

pcb spring terminal block

PCB spring terminal block

We offer a wide selection of PCB spring terminal blocks, perfect for quick and reliable wire connections on your circuit boards. These innovative blocks feature a tool-free push-in or lever-actuated design, ensuring fast and secure terminations. They’re ideal for applications requiring vibration resistance and ease of use, providing a strong, gas-tight connection for consistent performance.

smd pcb terminal block

SMD PCB terminal block

We offer a specialized range of SMD PCB terminal blocks for efficient surface-mount assembly. These compact, low-profile terminals are ideal for space-constrained applications like LED modules and consumer electronics. Designed for automated pick-and-place processes, they provide reliable wire connections with features like push-in or screw termination, available in various pitches and pole configurations, ensuring seamless integration into your PCB designs.

Customize Your PCB Terminal Block

Pitch and Number of Poles:

Customizing the pitch (distance between centers of adjacent pins) ensures compatibility with your PCB layout and required current rating. You can also specify the exact number of poles (connections) needed for your specific application, from a single pair to multiple connections, optimizing space and functionality on the board.

Mounting Orientation and Type:

Tailor the mounting orientation (horizontal, vertical, or angled) to fit your enclosure and wiring needs, optimizing cable routing and accessibility. Choose between through-hole technology (THT) for robust mechanical connections or surface-mount technology (SMT) for automated assembly and miniaturization.

Connection Method:

Select the ideal connection method for your application’s ease of use, vibration resistance, and wiring speed. Options include classic screw terminals for strong, reliable connections, spring-cage terminals for quick and tool-free wiring, or push-in terminals for rapid, intuitive insertions.

Color and Material Specifications:

Customize the housing color for easy identification of different circuits or for aesthetic integration with your product design. Specify materials for the housing (e.g., PA66 for high temperature resistance) and contacts (e.g., brass, phosphor bronze with tin or silver plating) to meet environmental demands, current ratings, and longevity requirements.

what are PCB terminal Blocks?

A PCB terminal block is an electrical connector component specifically designed to be mounted directly onto a printed circuit board (PCB), facilitating the secure and reliable connection of external wires to the electronic circuit. 

These PCB terminal blocks typically consist of an insulating housing, often made of plastic, containing metal contacts or terminals. Wires are secured into these terminals using various mechanisms, such as screws, spring clamps, or push-in designs. 

They serve as a convenient and organized interface for transmitting power, signals, and data between the PCB and external devices or systems, making them indispensable in a wide range of electronic applications from industrial controls to consumer electronics.

what are benefits of PCB Terminal boxes?

PCB terminal blocks offer numerous benefits that contribute to efficient and reliable electronic designs:

  • Secure and Stable Connections: They provide a robust mechanical and electrical connection, minimizing the risk of loose wires, signal loss, or power interruptions, even in environments with vibration or movement.
  • Ease of Assembly and Maintenance: Wiring is simplified, often requiring only a screwdriver or tool-free insertion. This accelerates initial assembly and makes troubleshooting, repairs, or component replacements significantly quicker and easier than soldered connections.
  • Versatility and Flexibility: Available in a wide array of pitches, pole configurations, orientations, and connection methods (screw, spring, push-in), they can be tailored to meet diverse application requirements, optimizing space and functionality on the PCB.
  • Enhanced Safety: By providing insulated connection points, they protect against accidental contact with live conductors, reducing the risk of electrical shock and short circuits. Many also offer test points for safer circuit diagnostics.
  • Cost-Effectiveness: Compared to other complex connector systems, PCB terminal blocks are generally an economical solution for establishing reliable wire-to-board connections, reducing both material and assembly costs.

what Is PCB terminal box used for?

PCB terminal blocks are widely used across various industries and applications where a reliable, flexible, and easily manageable connection between external wiring and a printed circuit board is required. They bridge the gap between the internal electronic circuitry and the outside world, allowing for power input, signal transmission, and data communication without the need for direct soldering of wires to the board, which can be cumbersome and difficult for maintenance.

Their versatility makes them indispensable in numerous electronic systems. Common applications include:

  • Industrial Automation and Control Systems: Connecting sensors, actuators, relays, and other control devices to PLCs (Programmable Logic Controllers), motor drivers, and other automation equipment.
  • Power Supplies and Distribution: Providing input and output connections for power sources, inverters, converters, and battery charging systems, ensuring stable power delivery.
  • Telecommunications Equipment: Used in routers, switches, base stations, and other communication devices for signal and data connections, often requiring high reliability and ease of maintenance.
  • Consumer Electronics and Appliances: Found in various household devices, lighting fixtures, and audio/video equipment where external wiring interfaces with internal PCBs.
  • Automotive Electronics: Connecting various sensors (e.g., oxygen, temperature, throttle position) and control units within vehicles, demanding robust and vibration-resistant connections.
  • HVAC Systems: Facilitating the wiring of thermostats, control panels, and other components in heating, ventilation, and air conditioning units.
  • Security Systems: Used in alarm systems, access control panels, and surveillance equipment for connecting sensors, sirens, and communication lines.

How to choose PCB Terminal boxes?

Choosing the right PCB terminal block is crucial for the performance, reliability, and safety of your electronic device. 

Here’s how to choose you desired PCB terminal blocks effectively:

  • Electrical Ratings (Current and Voltage):

    This is paramount. Select a terminal block with current and voltage ratings that exceed your application’s maximum requirements, ideally with a safety margin (e.g., 1.5 times the expected current). Overlooking this can lead to overheating, insulation breakdown, and potential fire hazards. Always account for temporary voltage surges or inrush currents that might occur in your system.

  • Wire Size and Type Compatibility:

    Terminal blocks are designed to accept specific wire gauges (AWG or mm²) and types (solid, stranded, or fine-stranded). Ensure the chosen block’s wire entry size range accommodates the wires you’ll be using. Different connection methods might also favor certain wire types; for instance, screw terminals often work well with both solid and stranded wires, while push-in types are frequently optimized for solid or ferruled wires.

  • Connection Method and Ease of Use:

    Consider the primary method for wire termination. Screw terminals offer robust clamping force but require a tool. Spring-cage terminals provide quick, tool-free wiring, often preferred for high-vibration environments. Push-in terminals offer the fastest connection by simply inserting the wire. The choice impacts assembly time, field maintenance ease, and resistance to environmental factors like vibration.

  • Physical Dimensions (Pitch, Poles, Orientation) and Mounting:

    The pitch (distance between centers of adjacent pins) must match your PCB’s footprint. Determine the required number of poles (connections) to ensure all circuits are accommodated. Choose the mounting orientation (horizontal, vertical, or angled) that best suits your enclosure, cable routing, and accessibility for wiring. Also, decide on through-hole (THT) for mechanical strength or surface-mount (SMT) for automated assembly.

  • Environmental and Safety Considerations:

    Assess the operating environment for factors like temperature, humidity, vibration, and chemical exposure. Select materials (housing and contacts) that can withstand these conditions. Importantly, verify that the terminal block meets relevant safety standards and certifications (e.g., UL, IEC) required for your product’s intended market, ensuring compliance and user safety.

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All-in-one PCB Terminal Block Solutions for Your Project

Discover all-in-one PCB terminal block solutions for your next project, offering unparalleled versatility and reliability. From compact 2-pin configurations to multi-pole designs, our range encompasses various pitches, current ratings, and mounting orientations (horizontal, vertical, angled). Choose from screw, spring-cage, or push-in connection methods, ensuring secure and efficient wire termination for any application, simplifying your PCB design and assembly processes.

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