The 1.27mm/2.0mm/2.54mm standardized through-hole connector with an intermediate opening is a standardized interconnection component specifically designed for board-to-board and board-to-wire connections within equipment. It covers both through-hole (DIP) and surface mount (SMT) installation forms. The intermediate opening structure is suitable for IDC line compression or precise connection of the mother connector, and is widely used in industrial control motherboards, intelligent hardware control modules, communication equipment backplanes, automotive electronic units, etc. With its characteristics of strong connection, convenient wiring, and strong adaptability, it has become a core component for signal and power transmission in high-density circuit systems.
I. Company Introduction
We are a high-tech enterprise specializing in the research and production of interconnection devices such as simple connectors, horns, and pin-and-socket assemblies. We have been deeply engaged in the field of precision connectors for over a decade and have established a complete industrial chain covering the development of precision molds, ultra-precise stamping of terminals, high-temperature injection molding, automated assembly, and full-performance testing. The company is equipped with professional equipment such as terminal insertion and extraction durability testing machines, insulation resistance testers, reflow soldering temperature simulation testing systems, and high-frequency signal analyzers. The monthly production capacity of 1.27mm/2.0mm/2.54mm simple connector is over 50 million pieces, and it can efficiently handle batch orders and personalized customization requirements.
The company strictly adheres to the ISO9001 quality management system and the IATF16949 automotive industry quality standards. Its products have obtained multiple international certifications such as RoHS, REACH, and UL. Each batch of products undergoes comprehensive tests including contact resistance, insertion and extraction life, temperature resistance, insulation withstand voltage, etc., and quality traceability files are established. With its high reliability and high adaptability features, the company provides cost-effective interconnection solutions for customers in the fields of industrial control, communication equipment, automotive electronics, and consumer electronics, and has gained long-term trust in the domestic and overseas markets.
II. Key Features of the Product
Multiple gaps for full coverage, and an open structure in the middle that is flexible in adaptation.
Covering three industry standard spacings of 1.27mm, 2.0mm, and 2.54mm, it meets the connection requirements for different circuit densities: The 1.27mm spacing is for high-density design, suitable for space-constrained devices such as micro industrial control modules and sensor acquisition boards; The 2.0mm spacing balances density and stability, commonly used in the backplanes of communication equipment and automotive electronic subboards; The 2.54mm spacing is a general standard model, widely used in industrial control motherboards and intelligent hardware development boards.
The core adopts an intermediate opening design. The opening width precisely matches the interlocking structure of IDC cables and corresponding specification socket motherboards, enabling cable-free welding compression connection or quick plug-and-pull connection with the socket motherboards. This significantly simplifies the internal wiring process of the equipment and enhances assembly efficiency. The product supports single-row or double-row structures, with pin numbers ranging from 2 to 64. Special pin arrangement can be customized according to customer requirements.
Dual installation forms, matching different PCB process requirements
DIP type: The solder joints are vertically inserted into the through-hole of the PCB board for welding. The solder joints are designed with a thicker profile, with a diameter 20% larger than that of the regular model. After welding, the connection strength with the PCB board is high, and the anti-vibration and shock resistance is excellent. The insertion and extraction force is stable. It is suitable for industrial control motherboards, servo drives and other equipment scenarios that require frequent insertion and extraction or strong vibration. This effectively avoids the problem of loose or脱落 of solder joints after long-term use.
Surface Mount Technology (SMT) type: Adopting standardized SMT assembly design, the pad size precisely matches the nozzle parameters of mainstream SMT machines, with an assembly accuracy error of ≤ ±0.08mm. The housing is made of high-temperature resistant LCP liquid polymer material, capable of withstanding a reflow soldering temperature of 260℃ ± 5℃. During the high-temperature period (≥ 245℃), there is no deformation or melting loss for 10 seconds. The terminal solder pads are treated with a high-temperature anti-oxidation coating, and the coating does not fall off during the welding process, perfectly adapting to the automated SMT production line and meeting the compact layout requirements of ultra-thin devices.
Highly stable connection design, ensuring precise and reliable signal transmission
The terminals are made of high-purity oxygen-free copper with gold plating, with a plating thickness of ≥ 0.3 μm. The contact resistance is ≤ 15 mΩ. They have outstanding anti-oxidation and anti-wear properties, effectively reducing signal transmission loss. The double-row connector adopts a staggered terminal layout, combined with grounding shielding ribs, and the impedance is precisely controlled at 50Ω ± 5Ω, which can meet the requirements of high-frequency signal transmission and eliminate signal crosstalk between channels.
The pins are manufactured using an integrated stamping process, with a verticality error of ≤ ±0.05mm. When inserting the mother connector or pressing the wiring, the force is evenly distributed, and there will be no problems such as pin skewing or deformation. The insertion and extraction force is precisely controlled at 1.0 - 1.5N per pin, providing a smooth and unobstructed feel. The insertion and extraction lifespan can reach over 8,000 times, and after repeated insertion and extraction, the clamping force can still remain stable, meeting the long-term usage requirements of the equipment.
The structure is sturdy and durable, capable of withstanding complex working conditions.
The housing is made of UL94 V-0 grade flame-retardant engineering plastic. The insulation resistance is ≥ 1000 MΩ, and the withstand voltage is ≥ AC 500V. This effectively isolates the risk of circuit short-circuit and ensures the safety of equipment usage. The connection part between the housing and the pins adopts a reinforced rib design, which enhances the overall structural strength and can withstand external force impacts during plugging and unplugging, preventing the pins from bending.
The product can operate stably within a wide temperature range of -40℃ to 125℃. In low-temperature environments, the shell will not crack, and the elasticity of the pins will not be lost. In high-temperature environments, there will be no contact problems. It is suitable for complex working conditions such as industrial high-temperature workshops, vehicle-mounted high-temperature exposure, and outdoor harsh climates. Some models can be customized with dust-proof structures. By installing dust covers, dust can be prevented from entering the opening parts, thus avoiding contact problems.
III. Product Advantages
High adaptability and convenient wiring
The middle-opening structure is compatible with both IDC wire crimping and busbar connection methods, eliminating the need for additional wire welding and significantly simplifying the equipment assembly process. The three spacing specifications cover all scenarios from high-density to general-purpose, and are compatible with the same specifications of busbars and wires from mainstream brands, with strong interchangeability, thereby reducing the procurement and inventory costs for customers.
Easy to install and high production efficiency
The direct insertion type through-hole welding process is suitable for both manual or wave soldering mass production; the surface mount type is compatible with automated SMT production lines, supporting reel packaging, enabling automatic feeding by the surface mount machine, enhancing the automation level of the production line, and shortening the product mass production cycle.
Stable quality and high reliability
Full-process automated production and testing, with the batch production defect rate controlled below 0.1%; wide temperature resistance and weather resistance design, as well as high insertion and removal life design, ensure the product can operate stably for a long time in complex environments such as industrial and vehicle applications, reducing the cost of equipment after-sales maintenance.
Customizable and flexible, with quick response.
Support customization of parameters such as the number of pins, the height of the housing, the length of the solder joints, and the width of the openings according to customer requirements. We can customize shielded type simple horns for high-frequency scenarios and anti-vibration enhanced models for vehicle applications. Standard custom samples will be delivered within 2 working days, and the production cycle for batch production can be controlled.
IV. Product Applications
Industrial control field
It is compatible with PLC control cabinets, industrial control motherboards, servo drives, sensor acquisition modules and other equipment. Direct-insertion style JIANNiu, with its high vibration resistance, ensures stable signal and power transmission in industrial production environments, enabling the automation control and data acquisition of the equipment.
Communication equipment field
Used for the backplanes of routers, switches, base station equipment, etc., with a 2.0mm pitch, this simple connector ensures both density and high-frequency transmission performance. The middle opening structure facilitates the connection of the backplane and sub-boards for wiring, ensuring the stable operation of the equipment's high-speed communication function.
Automotive electronics field
It is compatible with vehicle central control screens, body control modules, and battery management systems of new energy vehicles. The surface mount type design meets the requirements of the vehicle electronic automated production line. Its wide temperature and weather resistance characteristics are suitable for complex vehicle operating conditions, ensuring stable connections during driving.
The field of intelligent hardware
Suitable for single-chip microcontroller development boards, IoT modules, smart home control boards, etc. The 2.54mm universal model is simple and convenient for engineers to quickly build circuit prototypes. The middle opening structure makes it easy to expand functions by adding wiring.
V. FAQ
Q1: How can the simple bull's horn structure be connected to the IDC (Integrated Drive Configuration) wiring?
A1: Just align the insulation layer of the IDC wire with the opening position of the ferrule, and use the dedicated crimping tool to press the wire. The conductor of the wire can be closely connected to the ferrule pins without the need for welding. The connection is firm and efficient, and it is suitable for mass assembly.
Q2: Are there any differences in the insertion and removal lifetimes between the through-hole type and the surface-mount type connectors?
A2: There is no significant difference. The simple needle-like pins and spring-clip structures of the two installation forms are exactly the same. Both are made of highly elastic gold-plated material, and the insertion and removal lifespan can reach over 8,000 times. The only difference lies in the connection method with the PCB board. The selection can be made according to the equipment process requirements.
Q3: Do you support customizing shielded type simple speakers with a 1.27mm pitch spacing?
A3: Support. A metal shielding cover can be added to the outer side of the double-row simple shell. The shielding effectiveness should be ≥ 85 dB at 1 GHz, effectively resisting external electromagnetic interference and meeting the strict requirements for signal anti-interference of miniature industrial control modules, high-frequency communication equipment, etc. Specific shielding level and installation size parameters need to be provided.
