1.25mm Pitch Wire To Board Connector

A1254: 1.25mm-pitch wire-to-board connector

 

 

 

 

Pitch	1.25 mm
Rated current	1 A AC/DC
Rated Voltage	125 V AC/DC
Insulation Resistance	≥100 MΩ
Contact Resistance	≤20 mΩ
Withstand voltage	500 V AC/minute
Temperature range	-25°C to +85°C
Applicable wire gauge	AWG #28–32

 

 

 

Jiankun's production process adheres to professional quality control standards for electronics manufacturing and is divided into three core stages: front-end manufacturing, mid-end manufacturing and quality control, and back-end warehousing and delivery, as detailed below:
 

Front-End Process: Component Forming
1. Terminal Stamping and Forming
Using high-purity copper strip as raw material, high-speed precision stamping equipment is employed to cold-form terminal blanks. The structural precision and mechanical strength of the terminals are strictly controlled, laying the foundation for subsequent electrical connection performance.
2. Terminal Plating
Qualified external suppliers perform surface treatments such as gold plating, tin plating, and nickel plating to enhance the terminals' conductivity, oxidation resistance , and insertion/removal endurance, thereby meeting industry environmental and reliability requirements such as RoHS and REACH.
3. Injection Molding of Plastic Housings
Engineering plastic pellets (such as PA66 and LCP) are melted at high temperatures using precision injection molding machines and injected into molds to form the connector housing, ensuring dimensional stability, insulation performance, and temperature resistance.
 

Mid-Process Manufacturing and Quality Control
1. Automated Assembly
High-speed pin insertion equipment is used to precisely insert and lock the electroplated terminals into the injection-molded housing, forming the connector's electrical connection structure. A vision positioning system ensures assembly accuracy throughout the entire process.
2. CCD Visual Inspection
A high-resolution CCD vision inspection system is used to automatically inspect for外观 defects (such as terminal deformation or flash on the plastic housing) and dimensional accuracy (such as terminal alignment deviation), with a detection accuracy of up to ±0.01 mm.
3. Tape-and-Reel Packaging
Qualified products are packaged on carrier tapes and cover tapes to meet the SMT automated placement process requirements of downstream customers, while also preventing damage during transportation and storage.
4. Final 100% Inspection
Through a combined "manual visual inspection + electrical performance testing" process, we verify core electrical metrics of the connectors-including electrical continuity, withstand voltage, and insulation resistance-to ensure products comply with industry quality system requirements such as IATF 16949.
 

Back-End Warehousing and Delivery
1. Batch-Based Inventory Management
Qualified products are scanned and received into inventory via the WMS (Warehouse Management System), enabling production batch traceability, dynamic inventory control, and first-in, first-out (FIFO) management.
2. Order Fulfillment and Shipping
We complete order picking and preparation according to customer orders, arrange shipping through our logistics system, and provide batch traceability reports and Certificate of Conformity (COC) throughout the entire process to ensure on-time delivery and product traceability.

 

 

 

Jiankun Connectors' core production base operates under the IATF 16949 automotive quality management system, combined with the ISO 9001 general quality standard. Focusing on the performance requirements of compact product structures and highly reliable connections, we have established a fully automated production chain covering "raw material processing – component molding – finished product assembly – quality inspection." Through specialized workshop zoning, precise division of labor, and the use of intelligent equipment, we ensure controllable quality and efficiency at every stage, providing robust hardware support for high-end applications across the automotive, medical, and digital sectors.
 

Injection Molding Workshop: High-Precision Automated Molding, Laying a Solid Foundation for the Quality of Microstructural Components
As the core operational unit of the "injection molding raw materials division," the injection molding workshop focuses on the precision molding of plastic structural components such as connector micro-housings and internal latches. Throughout the entire process, it aligns with the design requirements for compactness and high rigidity:

• Equipment and Process Control
• Process Quality Verification
   

Stamping Workshop: Precision Copper Strip Processing, Empowering the Core Performance of Micro Terminals
As the key processing area within the "Copper Strip Raw Materials Branch," the Stamping Workshop specializes in the precision stamping of micro-terminals, providing the core substrate necessary to ensure the products' electrical performance-including low contact resistance and high connection stability:

• Equipment and Raw Material Configuration
• Process Seamless Integration

 

Assembly Shops I and II: Automated Integrated Assembly, Achieving Closed-Loop Process Quality Control
Assembly Workshops I and II focus on core assembly processes. Through the deployment of multiple sets of intelligent automated production lines, they receive qualified components from the stamping and injection molding operations to complete core processes such as terminal crimping and component integration, while simultaneously performing precise verification of the assembly process:

• Automated Precision Assembly
• Integrated In-Line Inspection
   

End-to-End Autonomous Production Layout: Dual Assurance of Efficiency and Quality
Centered on an end-to-end autonomous production layout, the facility breaks down barriers across all stages-from raw material processing and component forming to finished product assembly. Through a digital management system, all workshops share production data, enabling precise traceability of raw material batches, equipment parameters, and inspection data for every production batch.This integrated layout not only shortens production cycles to meet the bulk delivery requirements of clients across multiple sectors but also establishes a fully controllable product quality system through standardized processes and end-to-end inspection.

 

 

 

1. Standardized Packaging Design
JKUN adopts industry-standard packaging solutions. Products are neatly packed into dedicated cardboard boxes according to their specifications and uniformly secured to pallets after packaging. This ensures orderly stacking while facilitating forklift loading and unloading, significantly improving the efficiency of warehousing and transit operations.
 

2. Standard Storage Requirements
Products must be stored in their original, undamaged packaging at all times in a clean, dry warehouse. We recommend prioritizing areas that are protected from light, with minimal temperature and humidity fluctuations, and low humidity. Additionally, avoid subjecting the packaging to external pressure or impact to prevent damage that could affect product performance.
 

3. Flexible Shipping Options
To meet diverse order requirements and logistics coverage, the products offer a variety of shipping methods, including full-truckload road transport (trucks), international express services (such as UPS, TNT, FedEx, EMS, and DHL), air freight, and ocean freight, which can be flexibly adapted to specific scenarios.
 

4. Transportation and Handling Precautions

• During transport, take special care to prevent the packaging from coming into contact with sharp objects and to avoid severe impacts, as these can cause packaging damage that may affect product quality;
• Under normal transportation and proper handling conditions, this product does not pose any undue health hazards; however, loading and unloading safety must still be prioritized to prevent non-compliant operations;
• Packaging materials must be properly disposed of; indiscriminate disposal is strictly prohibited, and both environmental requirements and operational standards must be observed.

 

 

 

Our company's quality management system is built upon a framework of internationally recognized certification standards, establishing a three-pronged quality assurance model comprising "system certification endorsement + end-to-end process control + full lifecycle traceability." This ensures that product quality remains stable and reliable, meets all compliance standards, and fully satisfies the market access requirements and application standards of diverse global markets.
 

Quality Assurance System Empowered by Authoritative Certifications
The company has established a multi-tiered compliance system covering quality, environmental, and industry-specific areas. Through the dual support of standardized management systems and product certifications, we have laid a solid foundation for product quality:
1. IATF 16949 Automotive Quality Management System Certification
2. ISO 9001 Quality Management System Certification
3. ISO 14001 Environmental Management System Certification
4. UL/CUL Product Safety Certification
5. CE Product Compliance Certification
 

End-to-End, Closed-Loop Quality Control Measures
Leveraging an authoritative certification system, the company has established a seamless, end-to-end quality control mechanism covering the entire process from "incoming materials-production-finished products," enabling the precise detection and rejection of nonconforming products:
1. Incoming Quality Control (IQC)
2. In-Process Quality Control (IPQC)
3. Final Inspection of Finished Products (FQC)
 

Full Lifecycle Quality Traceability and Continuous Improvement
The company has established a traceability system using unique product batch identifiers. Through batch codes, it enables end-to-end traceability of raw material sources, production equipment, process parameters, testing data, and operators, ensuring that quality issues can be precisely pinpointed and quickly investigated.At the same time, in accordance with the continuous improvement requirements of ISO 9001, we regularly collect customer application feedback and production process quality data to conduct systematic data analysis and process optimization. This drives the dynamic enhancement of our quality management system and product quality, thereby continuously improving customer satisfaction.

 

 

 

Wenzhou Jiankun Connectors Co., Ltd. was established in 2013 and is located in the core area of the Wenzhou Yueqing connector industry cluster. As an R&D-driven National High-Tech Enterprise, the company integrates the research, development, design, production, and sales of connectors.With over a decade of technical expertise, a comprehensive production and sales system, and rigorous quality control, the company has become a leading enterprise in the automotive and general-purpose electronic connector sectors. It provides highly reliable, application-specific connectivity solutions to global customers, focusing on high-end markets such as automotive, new energy, and consumer electronics.
 

Core Strengths: Dual Empowerment Through Compliance and Technology
Adhering to the philosophy of "Compliance as the Foundation, Technology as the Cornerstone," the company has established a comprehensive quality control and R&D support system:

• System Certifications: Certified to ISO 9001, ISO 14001, ISO 45001, and IATF 16949, the company implements standardized control throughout the entire process to meet automotive-grade requirements and has successfully integrated into the core automotive electronics supply chain.
• Certification and Testing: Our full product line has obtained international certifications such as UL, CUL, and CE. Our laboratory is CNAS-accredited and capable of conducting rigorous tests-including high and low temperature and vibration testing-to support R&D and quality validation.
• R&D and Innovation: As a National High-Tech Enterprise, we focus on securing patents in fields such as automotive electronics and new energy, while deepening our expertise in key technologies like miniaturization and high electrical conductivity to keep pace with cutting-edge industry trends.

 

Product Portfolio: Focusing on Core Markets, Adapting to Diverse Scenarios
We have built a comprehensive connector portfolio covering the four major sectors of automotive, new energy, electronics, and LED, combining both standardized and customized capabilities:

• Automotive Connectors: Designed for core components such as vehicle lighting and ECUs, featuring wide-temperature resistance, vibration resistance, and anti-loosening properties, and certified to automotive standards.
• New Energy Connectors: Designed for applications such as BMS and charging stations, featuring high-voltage resistance and low contact resistance, and compatible with 800V high-voltage platforms.
• Electronics and LED Connectors: Covering SMT, LED lighting connectors, and wiring harnesses, featuring miniaturization and high integration to meet the needs of consumer electronics and industrial equipment.
• Development Strategy: Focusing on Cutting-Edge Technologies and Deepening Independent Innovation

 

Development Strategy: Focusing on Cutting-Edge Technologies and Deepening Independent Innovation

In the future, we will focus on three key sectors-artificial intelligence, 5G, and new energy-and develop high-end connectors centered on technological innovation; expand our global footprint through a systematic market strategy and deepen cooperation with leading enterprises; and, relying on our professional team, drive product upgrades toward "high reliability, high precision, and high value-added," striving to become a benchmark enterprise in the global connector industry.