2.5mm Pitch THR Connector

T2501-2502: 2.5 mm pitch through-hole reflow connector

Product Overview

The T2501-2502 is a 2.5mm pitch through-hole reflow connector featuring a wide-pitch pin socket design that supports integrated reflow soldering on PCBs. With outstanding current-carrying capacity and a robust, reliable structure, it is widely used for internal circuit connections in electronic products such as high-power LED power supplies, industrial control equipment, and home appliance control modules, and is well-suited for automated mass production.

Product Features

1. 2.5mm Spacious Pitch

The generous pin pitch ensures excellent heat dissipation and higher current-carrying capacity, meeting the requirements of high-power electrical equipment.

2. Through-hole reflow soldering design

Compatible with SMT reflow soldering processes, these connectors can be soldered simultaneously with the circuit board in a single step, streamlining production and improving efficiency.

3. Reinforced Vertical Pins

The pins feature a robust structure with sufficient insertion depth into the through-holes, ensuring strong solder joint strength, vibration resistance, and a low risk of cold solder joints or detachment.

4. Stable Electrical Conductivity

The terminals undergo precision electroplating, resulting in low electrical resistance and ensuring stable, reliable connections even during prolonged continuous power-on conditions.

5. High-Temperature-Resistant, Flame-Retardant Plastic Housing

The plastic material withstands the high temperatures of reflow soldering; it resists deformation and melting during high-temperature processing, resulting in a high production yield.

High-power LED driver power supplies, industrial control motherboards, commercial lighting equipment, home appliance power modules, and outdoor electrical control equipment.

Jiankun Connectors employs a dual-branch parallel production model, utilizing a highly efficient and coordinated manufacturing system to ensure large-scale production efficiency and product consistency. The specific process is as follows:
1. Copper Strip Substrate Processing Branch: Using high-purity copper strip as the raw material, terminals are first formed using high-precision stamping equipment to ensure that critical dimensional tolerances remain within industry standards;The stamped workpieces are then immediately transferred to a specialized electroplating workshop, where they undergo standardized surface treatment processes (such as tin plating and gold plating) to enhance the terminals' electrical conductivity, corrosion resistance, and mechanical wear resistance, laying the foundation for reliable connections in subsequent stages.

2. Injection Molding Raw Material Processing Branch: Proceeding in parallel with copper strip processing, high-quality injection molding materials that meet the automotive industry's environmental and temperature resistance standards are selected. Core components such as connector housings and rear covers are manufactured as integrated parts using high-precision injection molding equipment. Strict control is exercised over the appearance, dimensional accuracy, and structural strength of the injection-molded parts to ensure proper fit with the electroplated terminals.

Once processing in both branches is complete, the electroplated terminals and injection-molded components are transferred to the pin-pressing assembly process, where automated equipment ensures precise assembly, guaranteeing component fit and assembly stability.The assembled semi-finished products first undergo CCD vision inspection. Using high-precision imaging technology, the process conducts a comprehensive, all-angle verification of the product's critical dimensional accuracy, cosmetic defects (such as scratches and deformation), and assembly fit. Products that pass inspection are transferred to the automated tape-and-reel process for standardized batch packaging, which facilitates subsequent warehouse management and meets customers' automated assembly requirements.After tape-and-reel packaging, the products undergo a comprehensive final inspection. Through multi-dimensional quality control measures-including electrical performance testing, random sampling for water resistance and sealing integrity, and mechanical insertion/removal endurance testing-we ensure full lifecycle quality control. Finally, finished products that pass the final inspection are transferred to the finished goods warehouse for standardized storage. Based on customer order requirements, we perform precise picking, customized packaging, and efficient delivery to ensure that every batch of products meets the automotive industry's stringent quality standards.

To ensure the consistent performance of Jiankun connectors throughout the entire process and to meet the demands of industrial applications and international trade, the following standardized control measures have been established:
 

Standardized Packaging: Balancing Protection and Efficiency
1. Inner Packaging: After passing the full inspection, products are sorted by specification and sealed in anti-static, dust-proof, and shock-absorbing packaging to prevent terminal scratches and deformation;
2. Outer Packaging: Products are placed in custom high-strength corrugated boxes, secured with cushioning foam, sealed with high-strength tape, and labeled on the outside with model numbers, batch numbers, and international protection ratings;
3. Pallet Loading: After boxing, products are stacked onto standard industrial pallets and cross-braced to facilitate forklift operations, thereby improving loading and unloading efficiency and reducing the risk of damage.
 

Specialized Storage: Strict Environmental Control to Ensure Performance
1. Environment: Maintain the original factory-sealed packaging and store in a clean, dry, well-ventilated, and light-protected standard warehouse;
2. Management: Implement the "First-In, First-Out" (FIFO) principle and maintain a batch ledger;
3. Prohibitions: Do not store products in the open; prevent contact with contaminants; do not open boxes or stack heavy equipment in the storage area.
 

Diversified Transportation: Tailored to Different Delivery Needs
1. Full-Truckload Road Transport: Suitable for large-volume domestic orders and nearby cross-border shipments; transported in enclosed trucks with pallets double-secured to protect against rain and dust;
2. International Express: Suitable for samples and small-batch rush orders; utilizes carriers such as UPS and DHL, providing reinforced packaging and a full set of customs clearance documents;
3. Air / Ocean Freight: Suitable for large-volume cross-border orders; air freight ensures timely delivery, while ocean freight controls costs; full container load (FCL) and less-than-container load (LCL) services are provided in compliance with international standards.
 

Transportation Protection and Safety: Mitigating Logistics Risks
1. Protection: Avoid sharp objects; ensure smooth forklift operation; reinforce pallets and cargo compartments for long-distance transport; immediately inspect product condition if packaging is damaged;
2.Environmental Safety: Complies with RoHS and REACH standards; contains no toxic substances. We recommend wearing gloves during handling to prevent terminal corrosion. Please sort and recycle packaging materials.

Throughout the entire R&D and production chain for connectors, JKUN provides core support for product compliance, quality stability, and technological uniqueness through comprehensive certification and a portfolio of proprietary patents:

Throughout the entire R&D and production process of Jiankun Connectors, comprehensive certifications and a portfolio of proprietary patents provide core support for product compliance, consistent quality, and technological uniqueness:
Comprehensive Authoritative System Certifications (Core Endorsement of Product Compliance and Management Capabilities)
We have obtained high-level system certifications in the automotive and manufacturing sectors, covering all aspects of production, management, and service, thereby laying the foundation for the compliant delivery of connector products:
IATF 16949: A quality management system certification specific to the automotive industry, serving as the core compliance credential for connector products used in automotive electronics applications and ensuring products meet the stringent quality standards of the automotive sector;
ISO 9001: General quality management system certification, ensuring control over the entire production process from raw materials to finished products;
ISO 14001 and ISO 45001 cover environmental management and occupational health and safety management, respectively, ensuring green compliance in production processes and personnel safety;
GB/T 27922-2011: After-sales service certification, providing regulatory support for product after-sales response and service quality.
 

Proprietary Technology Patents (Technical Barriers for Core Product Performance)
We have obtained multiple utility model patents (as shown in the displayed patent certificates) related to the core design and manufacturing processes of our connectors. Our patented technologies focus on:
Optimized design of connector structures;
The technical foundation for streamlining wire harness production processes, with an emphasis on process innovation;
Precision assembly structures for terminals and housings, ensuring connection stability and vibration resistance.
These proprietary patents not only directly demonstrate our technical advantages but also establish exclusive technical barriers that enhance our products' market competitiveness.
From compliance assurance through authoritative system certifications to technical support from our proprietary patents, JKUN's qualifications and patent portfolio are the core foundation of our commitment to "stability, reliability, and suitability for automotive applications."

Wenzhou JKUN Connectors Co., Ltd. was established in 2013 and is located in the core area of the Wenzhou Yueqing connector industry cluster. It is a National High-Tech Enterprise driven by R&D, integrating the research, design, production, and sales of connectors.With over a decade of deep expertise in the connector field, the company's core product portfolio covers the full range of categories, including automotive connectors, new energy connectors, electronic connectors, and LED connectors, providing highly reliable, scenario-specific connection solutions for the global high-end manufacturing industry.

The company has established a comprehensive compliance and quality assurance system, having successively obtained certifications for the ISO 9001 Quality Management System, ISO 14001 Environmental Management System, ISO 45001 Occupational Health and Safety Management System, and the IATF 16949 automotive-specific quality management system, thereby achieving standardized and regulated control throughout the entire production process.The entire product line has obtained authoritative international certifications such as UL, CUL, and CE, ensuring compliance and market access in major global markets. The company's laboratory is accredited by the China National Accreditation Service for Conformity Assessment (CNAS) and possesses the capability to independently conduct multidimensional, rigorous environmental simulation tests, providing a solid foundation for technological R&D iteration and product quality validation.

Looking ahead, the company will focus on three core sectors-artificial intelligence, 5G communications, and new energy-using technological innovation as its core engine to deepen its presence at the forefront of the industry. Leveraging a systematic global market strategy, an end-to-end technical support network, and a professional, efficient, and innovative core team, the company will continue to deepen its commitment to independent innovation, driving product upgrades toward high reliability, high precision, and high value-added features. It is committed to becoming a specialized benchmark enterprise in the global connector industry and empowering the high-quality development of high-end manufacturing.