Square Hole Straight Insert Pin Header, 2.0×2.0mm Single Row 1×2P, Single plastic insulator, 180° Orientation, Overall Height 8.7mm (PA=3.9mm, PC=2.8mm), Gold or tin over 50μ" Ni, PA6T Material

1. Product Specifications & Technical Parameters

This series of square hole straight insert pin headers supports customized specifications to adapt to diverse PCB design requirements, with standardized core parameters and strict production standards, ensuring consistent product performance and interchangeability.

2. Basic Structural Parameters

Customization Note: Pitch, insulator height, row count, pin count and mounting style all support custom specifications to match specific PCB design requirements.

Material & Surface Treatment Parameters

Insulator material: High-quality PA6T nylon, UL94 V0 flame retardant grade, with excellent high temperature resistance, insulation and anti-aging properties, effectively preventing leakage and short circuit risks；Pin material: High-purity brass with good electrical conductivity and ductility, ensuring stable signal and power transmission；Surface plating: Standard tin plating, optional gold plating for high-precision and high-frequency scenarios, anti-oxidation, anti-corrosion, reducing contact resistance；

Current rating：2.0AMP

Contact resistance：30mΩ Max

Insulation resistance:1000mΩ Min,which can effectively avoid current leakage and signal interference.

Withstand voltage:600V AC/minute,ensuring safe and stable operation of the circuit. The electrical performance is stable in a wide temperature range, without virtual connection or signal attenuation.

Environmental & Mechanical Performance Parameters

Operating temperature range: -40℃ to +85℃, adapting to complex indoor and outdoor working environments；Storage temperature: -40℃ to +85℃；Plug and pull life: More than 1000 times, maintaining stable connection performance after long-term repeated plugging；Pin retention force: Meet international industry standards, no loose pins or falling off after welding and assembly；Welding process: Compatible with wave soldering and manual plug-in welding, suitable for mass automated production；Environmental certification: RoHS compliant, lead-free and environmentally friendly, meeting EU export standards.

Compared with traditional round hole pin headers, our square hole straight insert pin headers have comprehensive upgrades in structural design, electrical performance and service stability, with obvious competitive advantages.

Precision Square Hole Structural Design, More Stable Connection

The unique square hole fitting structure solves the problem of easy shaking and poor positioning accuracy of traditional round hole pins. The square hole and pin body fit tightly without offset or rotation, greatly improving the mechanical stability of PCB assembly. After welding, the pins are fixed firmly, which can resist vibration and impact in the working environment, avoiding poor contact caused by loose pins, and effectively improving the overall operational stability of electronic equipment. The independent separated cavity design of each pin hole prevents adjacent pin short circuit and signal crosstalk, ensuring pure and stable signal transmission.

Excellent Electrical Performance, Efficient Transmission

Adopting high-purity brass conductive pins and standardized tin/gold plating process, the product has ultra-low contact resistance, stable power supply and signal transmission, no signal attenuation or delay. It can adapt to low-frequency signal transmission and conventional power supply scenarios, and also support high-precision circuit connection requirements. Excellent insulation performance and withstand voltage resistance effectively avoid electrical safety hazards such as leakage and breakdown, ensuring the safe operation of equipment for a long time.

Superior Environmental Adaptability & Durability

The insulator adopts UL94 V0 flame retardant PA6T material, which has good high temperature resistance, low temperature resistance and anti-aging ability. It will not deform, crack or melt during high-temperature welding and long-term high-load operation. It can work stably in high temperature, low temperature, humid and slightly dusty environments. The anti-oxidation and anti-corrosion plating layer prevents pin oxidation and rust caused by long-term exposure to the air, greatly extending the service life of the connector and reducing equipment maintenance and replacement costs.

Strong Compatibility & Flexible Customization

The product follows international universal size standards, which is highly compatible with mainstream PCB boards, development boards and electronic modules on the market, with strong interchangeability and easy replacement and maintenance. It supports diversified customized services including pitch, pin count, pin length, plating process and appearance size, which can meet the personalized design needs of different industries and different equipment models. Whether it is miniaturized precision equipment or industrial high-power equipment, it can provide matching connection solutions.

High Assembly Efficiency & Cost-Effective

The straight through-hole plug-in design is simple and intuitive, suitable for manual plug-in and automated wave soldering processes, which can greatly improve production and assembly efficiency and reduce labor costs. The product has stable quality and low failure rate, reducing after-sales maintenance and replacement costs. With standardized mass production, it has obvious price advantages while ensuring high performance, bringing higher cost performance and economic benefits to customers.

With its stable performance, strong compatibility and high reliability, our square hole straight insert pin headers are widely used in civil, commercial, industrial and automotive electronic fields, covering most PCB connection scenarios.

Industrial Control Equipment

It is widely used in PLC control modules, industrial data acquisition boards, sensor interface modules, motor drivers, power monitoring equipment, relay modules and industrial automation control systems. It can adapt to the complex working conditions of industrial vibration, high temperature and long-term continuous operation, ensuring stable signal and power connection of industrial equipment.

Consumer Electronics & Smart Home

Suitable for smart home control panels, air conditioners, washing machines, air purifiers, audio and video equipment, digital products, small printers and daily electronic appliances. It realizes stable connection between internal circuit modules of equipment, with safe and environmentally friendly materials, meeting the safety standards of civil electronic products.

Communication & Network Equipment

Applied to communication base station interface boards, router modules, switch equipment, signal transmission devices and optical communication equipment. The high-precision connection performance ensures stable and lossless transmission of communication signals, meeting the high-precision connection requirements of communication equipment.

Automotive Electronics & New Energy Equipment

Used for automotive control modules, on-board electronic equipment, new energy vehicle battery management modules and charging equipment connectors. With excellent vibration resistance and environmental adaptability, it adapts to the complex working environment of automobiles and ensures the safety and stability of automotive electronic systems.

Research & Development & Prototype Verification

As a universal IO expansion connector, it is widely used in electronic development boards, experimental prototype verification, teaching experimental equipment and electronic maintenance and replacement scenarios, providing convenient and reliable connection support for electronic R&D and teaching work.

Q1: What is the core difference between square hole pin header and traditional round hole pin header?

A1: The biggest advantage of square hole pin header is the anti-rotation and anti-shake structure. The square fitting design makes the pin and insulator fit more closely, with higher positioning accuracy and better mechanical stability. It can effectively avoid poor contact caused by pin offset and rotation during vibration, and has stronger connection reliability than round hole products, which is more suitable for industrial and high-stability requirement scenarios.

Q2: Is your pin header compatible with standard PCB boards and can it replace ordinary pin headers?

A2: All our square hole straight insert pin headers adopt international standard size specifications, which are highly compatible with mainstream standard PCB boards on the market. The installation size and welding position are consistent with ordinary pin headers, realizing direct replacement and plug-and-play without modifying PCB design, with strong versatility and interchangeability.

Q3: What welding methods are supported for this product? Is it suitable for mass production?

A3: This product supports manual plug-in welding and automatic wave soldering processes, with high temperature resistant insulator material, no deformation or damage during high-temperature welding. The product has unified dimensional tolerance and stable quality, which is fully suitable for factory automated mass production, effectively improving production efficiency and reducing defective rate.

Q4: Can you provide customized pin length, pitch and pin count specifications?

A4: Yes. We support full-range customized services of pin header specifications, including non-standard pitch, arbitrary pin count, customized pin length, special plating process and color customization. Our professional R&D and production team can provide exclusive customized solutions according to customers’ PCB design drawings and usage scenarios.

Q5: What is the quality guarantee and after-sales service policy?

A5: All products are strictly tested for appearance, conductivity, insulation and mechanical performance before leaving the factory, with 99% quality inspection. The products comply with RoHS environmental protection and UL safety standards. We provide long-term quality guarantee and perfect after-sales service. For quality problems caused by production processes, we support free replacement and return, ensuring customers’ legitimate rights and interests.

Q6: What is the delivery cycle and packaging method?

A6: Conventional standard specifications are in stock and can be delivered within 3-5 working days. Customized products are delivered according to the confirmed process cycle. The products adopt professional anti-static packaging, tubular packaging and tray packaging to avoid pin deformation, oxidation and damage during transportation, ensuring intact product delivery.

We are a professional manufacturer specializing in the R&D, production and sales of PCB connectors, pin headers, bus bars and interconnect components. With more than years of production experience, advanced production equipment and perfect quality inspection system, we are committed to providing global customers with high-quality, high-precision and cost-effective connector products and one-stop connection solutions.

We not only provide a full range of standard square hole straight insert pin headers, but also support personalized OEM and ODM customized services. Whether you need bulk wholesale, customized product development, sample testing or technical consultation, we can provide you with fast and professional service support.

We adhere to the business philosophy of "Quality First, Customer Supreme, Win-Win Cooperation", and have established long-term stable cooperative relations with customers in Europe, America, Southeast Asia and other regions. With reliable product quality, competitive factory direct sales price and perfect after-sales service, we help customers reduce procurement costs and improve product market competitiveness.