2.54x2.54mm 1x3P Single Row Gate-Type Pin Header (Middle 1P Empty), Single plastic insulator 180 Degree Straight Plug Pin Header

All technical parameters are strictly standardized and calibrated to meet global electronic assembly requirements, with precise dimensional tolerance control and stable material performance indicators, fully compatible with mainstream PCB design specifications worldwide.

1. Structural & Dimensional Parameters

2. Material & Surface Plating Specifications

• Insulator Material: High-performance PA6T engineering plastic, featuring high temperature resistance, flame retardancy, insulation stability and anti-aging properties
  
  

• Pin Material: High-purity brass with excellent electrical conductivity and mechanical toughness, not easy to deform or oxidize
  
  

• Plating Process: Standard Gold or tin over 50μ" Ni regular gold plating on pin surface, effectively improving oxidation resistance, corrosion resistance and plug-in stability
  
  
• The square hole positioning structure is matched with precise pin body calibration, which improves the assembly accuracy by 30% compared with round hole pin headers.and the pin length, bending angle, and tail size can be customized according to customer drawings and sample requirements.
  
  

3. Electrical Performance Parameters

• The product has excellent electrical conductivity and stable load capacity.
• Current rating：3.0AMP
• 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.

This 1×3P single-layer plastic connector with the middle 1P vacant adopts a compact single-layer plastic base and a three-position layout with the middle pin empty. It features small and thin overall size, and the plastic insulating base delivers stable insulation performance to effectively prevent circuit leakage. The customized layout with vacant middle 1P meets special wiring assembly requirements and avoids circuit interference caused by redundant pins. The single-layer plastic structure simplifies molding processes and ensures high product consistency with lower production costs, bringing simple and convenient assembly. Combined with reinforced bump structures, it can prevent plastic components from loosening and shifting under equipment vibration, suitable for wiring applications of various small electrical equipment and photovoltaic supporting devices.

3.1Premium Gold Plating Process for Superior Conductivity & Durability

Gold or tin over 50μ" Ni on high-purity brass pins, the product achieves ultra-low contact resistance and stable electrical transmission performance. The gold plating layer features uniform thickness, strong adhesion, excellent oxidation resistance and corrosion resistance, which can effectively resist oxidation, rust and corrosion in humid, dusty and long-term working environments. It avoids poor contact, signal interruption and circuit failure caused by pin oxidation, ensuring long-term stable and consistent electrical connection performance. Compared with ordinary tin-plated pin headers, it has longer service life and more reliable transmission effect, especially suitable for long-term uninterrupted operation of precision equipment.

3.2 Precise Dimensional Calibration & Convenient Assembly

All dimensions including total height 6.5mm, PA=1.0mm, PC=3.0mm, PB=2.5mm are precisely calibrated with strict tolerance control, fully matching international standard 2.54mm pitch PCB boards. The unique clamping buckle positioning design delivers anti-loosening performance after through-hole mounting. It firmly locks the plastic insulator in place and effectively prevents displacement or detachment caused by equipment vibration and external impact. The straight plug installation mode is simple and efficient, compatible with manual assembly and automatic welding production lines, greatly improving production and assembly efficiency and reducing production costs for customers.

3.3 High Temperature Resistance & Wide Environmental Adaptability

Adopting high-grade PA6T engineering plastic insulator, the product has outstanding high temperature resistance, low temperature resistance and anti-aging performance. It can work stably in the temperature range of -40℃ to +85℃ for a long time, and is not affected by temperature changes. The UL94 V-0 flame retardant grade meets global electronic safety standards, effectively preventing fire hazards caused by circuit short circuits. It can adapt to various harsh working environments such as indoor, outdoor, industrial workshop and vehicle-mounted scenarios, with strong environmental compatibility and high safety factor.

With its customized structural design, stable electrical performance and high safety, this 2.54mm 1x3P empty-middle Single plastic insulator pin header is widely used in precision electronic equipment, industrial control systems, intelligent terminal products and other fields, covering multiple industry application scenarios:

• Industrial Control Equipment: PLC control modules, industrial sensor connecting terminals, relay modules, industrial switching power supplies, and automated equipment circuit connection systems. The anti-interference and stable connection performance ensures the continuous and stable operation of industrial equipment.
  
  

• Consumer Electronics: Smart home equipment, wearable electronic devices, household appliance control boards, audio and video equipment, and small intelligent terminal circuits. The compact structure and convenient assembly meet the lightweight and miniaturization design requirements of consumer electronics.
  
  

• Communication Equipment: Mini communication modules, signal transceiver equipment, network terminal accessories, and communication circuit wiring systems. The empty-middle isolation design effectively avoids signal crosstalk and improves communication accuracy and stability.
  
  

• Automotive Electronics: Vehicle-mounted control modules, automotive sensor connectors, in-vehicle intelligent equipment circuits, adapting to vehicle vibration and temperature-changing working environments with high durability and stability.
  
  

• Medical Electronic Devices: Portable medical equipment, medical detection instrument circuit boards, precision medical control modules, meeting the high precision and high stability requirements of medical equipment connections.
  
  

• DIY Electronic & Experimental Modules: University electronic experimental boards, Arduino expansion modules, circuit DIY accessories, providing standardized and reliable connection solutions for electronic research and development and experimental testing.
  
  

• Power Supply & Lighting Equipment: Small switching power supplies, LED intelligent lighting control boards, power distribution module terminals, with excellent insulation and pressure resistance to ensure safe power connection.
  
  
  

Q1: What is the core advantage of the middle 1P empty design compared with ordinary 1×3 pin headers?

A1: The middle empty position is professionally designed for circuit isolation and wiring avoidance. It can effectively eliminate signal crosstalk and electrical short-circuit risks between adjacent circuits, optimize PCB wiring space, solve the assembly conflict problem of special structural circuits, and greatly improve the stability and design flexibility of precision circuit systems, which cannot be replaced by full-pin pin headers in customized connection scenarios.

Q2: What are the advantages of single-layer plastic parts and double-layer plastic parts?

A2: Single-layer plastic parts feature simple molding, low cost and compact size; double-layer plastic parts offer superior insulation protection, vibration resistance, anti-loosening performance and higher electrical safety.

Q3: Is this product available with gold plating or tin plating with nickel base thickness over 50 microinches, and is it suitable for long-term service?

A3: Absolutely reliable. Whether the product adopts gold plating or tin plating with nickel base thickness exceeding 50 microinches, the gold plating layer features uniform thickness and strong adhesion.

, with excellent oxidation resistance, corrosion resistance and wear resistance. It can maintain stable low-resistance electrical transmission for a long time in humid, dusty and high-temperature environments, avoid poor contact and signal failure caused by pin oxidation, and support more than 1000 times of plug-in cycles, fully meeting the long-term operation requirements of industrial and civilian electronic equipment.

Q4: Can this pin header be adapted to automatic welding production lines?

A4: Yes. The product adopts standard 2.54mm pitch and precise dimensional calibration, with neat pin arrangement and no deformation. The straight plug structure and clamping buckle positioning design are compatible with automatic plug-in and wave soldering processes. It can perfectly adapt to automatic production line operations, effectively improving production efficiency and reducing manual assembly errors.

Q5: What is the operating temperature range and safety grade of the product?

A5: The product can work stably in the temperature range of -40℃ to +85℃, adapting to most indoor, industrial and vehicle-mounted working environments. The insulator adopts PA6T material with UL94 V-0 flame retardant grade, which has excellent fireproof and anti-scalding performance, meeting international electronic safety standards and ensuring zero safety hazard in normal use.

Q6: Can you provide customized pin header specifications and sizes?

A6: Yes. We support full-range customized services of pin headers, including non-standard pitch, special pin number, customized height, different plating thicknesses, bending angles and structural designs. We can provide one-stop customized solutions according to customers’ PCB design drawings and application requirements.

We are a professional manufacturer of high-precision electronic connectors, focusing on the R&D, production and sales of various pin headers, female headers, terminal connectors and customized connecting components. With advanced production equipment, mature production technology and strict quality control system, we are committed to providing global customers with high-quality, cost-effective electronic connector products and professional customized services.

All our products comply with international industry standards and have passed multiple quality certifications, with stable performance and reliable quality, winning long-term trust and praise from customers in Europe, America, Southeast Asia and other regions. Whether you need spot wholesale, bulk procurement or personalized customized connector solutions, we can provide you with efficient and professional one-stop service.

Welcome global customers to consult, cooperate and order. We will reply to your inquiry within 24 hours, provide free product samples, detailed parameter sheets and professional technical support, and strive to create maximum value for every customer.