1.27mm Pitch 2x20PIN Double – Row Gold – Plated 40P SMT Box Header Socket
Our 1.27mm pitch 2x20PIN double – row gold – plated 40P SMT box header socket is a high – performance electronic connector designed for reliable circuit interconnection. The “box header”, also known as “简牛” in Chinese, features a square – shaped plastic housing paired with precisely arranged square pins. This particular model, with a 1.27mm pitch, offers a compact and high – density connection solution. The double – row 2x20PIN configuration provides 40 connection points, suitable for a wide range of applications that require multiple signal or power connections. The SMT (Surface Mount Technology) design allows for easy and efficient surface – mount installation on printed circuit boards (PCBs), which is beneficial for automated assembly processes.
Technical Specifications
| Parameter | Details |
|---|---|
| Pitch | 1.27mm |
| Number of Pins | 40P (2x20PIN double – row) |
| Contact Material | Phosphor bronze with gold plating. Gold plating enhances conductivity, reduces corrosion, and provides excellent wear resistance, ensuring long – term reliable signal transmission. |
| Insulation Material | High – temperature – resistant PA6T with a UL94V – 0 fire – rating. This material offers good electrical insulation properties, can withstand high temperatures during soldering and in – use conditions, and has high mechanical strength to protect the internal contacts. |
| Rated Current | 1A per contact. This current rating is suitable for various low – to – medium – power electronic applications, ensuring stable power supply to connected components. |
| Insulation Resistance | ≥1000MΩ at 500V DC. High insulation resistance effectively prevents electrical leakage between contacts, ensuring the integrity of the electrical signal and system safety. |
| Contact Resistance | ≤20mΩ. Low contact resistance minimizes signal attenuation and power loss during signal transmission, ensuring high – quality data and power transfer. |
| Withstand Voltage | 500V AC/DC for 1 minute. This withstand voltage value indicates the socket’s ability to resist electrical breakdown under normal and abnormal voltage conditions, providing reliable operation in different electrical environments. |
| Operating Temperature | – 40°C to +105°C. The wide operating temperature range makes the product suitable for use in various environments, from cold industrial settings to high – temperature indoor or outdoor applications. |
| Soldering Temperature | Can withstand soldering temperatures up to 260°C for 10 seconds during the SMT process, which is compatible with standard surface – mount soldering techniques in the electronics manufacturing industry. |
Key Features
- High – Density Design: The 1.27mm pitch allows for a large number of connections in a relatively small space, enabling more compact PCB designs. This is especially useful in applications where space is at a premium, such as in portable electronics, miniaturized medical devices, and high – density circuit modules.
- Gold – Plated Contacts: The gold – plated phosphor bronze contacts offer superior electrical conductivity, low contact resistance, and excellent corrosion resistance. Gold plating helps to maintain a stable connection over time, even in harsh environmental conditions, reducing the risk of signal loss or intermittent connections.
- SMT Compatibility: The SMT design of the socket is ideal for modern automated PCB assembly lines. It simplifies the manufacturing process, reduces assembly time, and improves production efficiency. SMT components also tend to have a lower profile, which contributes to a more streamlined and space – saving overall PCB layout.
- Reliable Performance: With strict quality control during manufacturing, this box header socket meets high – standard electrical and mechanical performance requirements. It can withstand repeated mating and unmating cycles, as well as mechanical stress and vibration, ensuring long – term reliable operation in various electronic systems.
- Versatile Application: Suitable for a wide range of industries and applications, including consumer electronics (such as smartphones, tablets, and wearable devices), industrial control systems, medical equipment, automotive electronics, and communication devices. It can be used for connecting different PCB modules, power supplies, sensors, and other electronic components.
Why Choose Our 1.27mm Pitch 2x20PIN Double – Row Gold – Plated 40P SMT Box Header Socket?
- Quality Assurance: Manufactured in a state – of – the – art facility with advanced production equipment and strict quality control procedures. Each socket undergoes multiple inspections and tests to ensure compliance with international standards such as RoHS, ensuring that it is environmentally friendly and free from hazardous substances.
- Customization Options: We offer customization services to meet specific customer requirements. This includes options for different pin counts, plating thicknesses, housing colors, and packaging methods. Our experienced engineering team can work closely with customers to develop tailored solutions for their unique applications.
- Competitive Pricing: Leveraging our large – scale production capacity and optimized supply chain, we are able to offer this high – quality product at a competitive price. We strive to provide cost – effective solutions without compromising on quality, ensuring that our customers get the best value for their investment.
- Technical Support: Our professional technical team is available to provide pre – sales consultation and after – sales support. We can assist customers with product selection, application design, and troubleshooting, helping them to make the most of our products and ensure successful integration into their systems.
- Fast Delivery: With efficient production and logistics processes, we are committed to providing fast and reliable delivery services. We understand the importance of timely delivery in the electronics industry and work hard to meet customer deadlines, whether for small – scale prototypes or large – volume production orders.
Applications
- Consumer Electronics: Used in smartphones for connecting the main board to various components such as the display, camera module, battery connector, and fingerprint sensor. In tablets, it can be used to connect the motherboard with the touchscreen controller, Wi – Fi module, and storage devices. Wearable devices like smartwatches also rely on such connectors to establish connections between different functional modules.
- Industrial Control: Applied in programmable logic controllers (PLCs) to connect input/output modules, communication modules, and power supply modules. In industrial automation systems, it helps to transfer control signals and power between different circuit boards, ensuring smooth operation of the production line.
- Medical Equipment: Found in miniaturized medical devices such as glucose meters, where it connects the sensor module to the main control board. In portable patient monitors, it is used to establish connections between various sensors (such as heart rate, blood pressure, and oxygen saturation sensors) and the data processing unit.
- Automotive Electronics: Utilized in automotive infotainment systems to connect the head unit to the display, speakers, and other peripheral devices. In the engine control unit (ECU), it helps to transfer signals between different sub – modules, ensuring proper engine performance and control.
- Communication Devices: Used in routers, switches, and access points to connect different circuit boards within the device. It enables high – speed data transfer between the network interface cards, power management modules, and the main processing board, ensuring efficient communication network operation.



