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SDN3.96 terminal connector

The terminal + housing dual-excellent configuration builds  

a solid line of defense for reliable connections

      In the connection system of electronic devices, the synergistic performance of terminals and housings directly determines connection stability. Backed by the measured data in the official specification approval, the SDN3.96 terminal connector from Guangdong Deke Electric focuses on terminal conduction efficiency and housing protection performance, creating a cost-effective connection solution suitable for multiple scenarios. All parameters are true and traceable, with no exaggerated publicity.

SDN3.96 Core Adaptation Parameters

Fast Matching of Application Requirements

           With its standardized design and flexible adaptability, SDN3.96 has become the preferred connector for most electronic devices.

• Comprehensive Specification Coverage: It supports multi-pin configurations ranging from 2P to 16P, with a standard pin pitch of 3.96mm. Compliant with industry universal standards, it is compatible with mainstream PCB boards and component interfaces.
• Flexible Wire Compatibility: It is compatible with AWG22#~18# (0.3~1.0mm²) conductors, eliminating the need for additional adapters and meeting the requirements of signal transmission and medium-power supply.
• Stable Environmental Resistance: The operating temperature range is -25°C to 85°C, enabling it to adapt to complex working conditions such as high temperatures in workshops and low temperatures outdoors. Its performance remains unaffected in environments with humidity ≤ 90% RH.
• Convenient Installation Adaptability: It is precisely compatible with 1.6mm standard-thickness PCB boards, requiring no modification to the substrate design and being directly compatible with automated production line assembly.

In-depth Analysis of SDN3.96 Core Components

Strength Reflected in Details

(I) Terminals: The Core Hub for Efficient Conduction

        As the key carrier for current and signal transmission, terminals provide dual guarantees in terms of material and performance:

1. Adopting a high-elasticity phosphor bronze base material, it features excellent electrical conductivity and strong clamping force. The surface is treated with tin plating, showing no obvious corrosion after a 24-hour salt spray test, which effectively resists oxidation.
2. With a rated current of 7A and rated voltage of 250V AC/DC, the contact resistance is ≤ 0.01Ω (10mΩ), ensuring minimal signal transmission loss. It is suitable for medium-power equipment power supply and precision signal conduction.
3. It delivers outstanding crimping tensile strength: when matched with AWG18# wires, the tensile strength is ≥ 50N, preventing loosening under vibration conditions. The plug-in feel is smooth, and stable contact is maintained even after multiple plug-in cycles.

(II) Housing: The Robust Barrier for Safety Protection

          The housing not only serves a fixing function but also integrates the core functions of insulation, flame retardancy and anti-misinsertion:

1. Made of nylon PA66 material, it complies with the UL94V-2 flame retardant standard, which can delay combustion when exposed to high temperatures and reduce the risk of electrical fires from the source. Some specifications support the higher UL94V-2 (0) flame retardant rating.
2. It has excellent insulation performance: the insulation resistance is ≥ 1000MΩ, and it can withstand 1500V AC for 1 minute without breakdown or leakage, effectively avoiding the risk of creepage between pins.
3. The structural design is thoughtful and practical: the retention force between terminals and the housing is ≥ 30N to prevent loosening after insertion; it is equipped with polarity positioning posts and foolproof structures to avoid component damage caused by reverse insertion; the low-profile and thin design saves internal equipment space, and the original lock structure reduces insertion force while improving assembly efficiency.

SDN3.96 / Real-World Application Deployment

Meeting Multi-Domain Requirements

• Smart Home Appliance Sector: Internal wiring connection for devices such as air conditioners, washing machines and rice cookers. The flame-retardant material and anti-loosening design meet the high-frequency operation requirements of home appliances.
• Industrial Control Sector: Signal transmission for small PLC modules, sensors and controllers. The 3.96mm standard pitch is compatible with industrial interfaces, and the wide-temperature characteristics adapt to the complex workshop environment.
• Consumer Electronics Sector: Wiring connection for small instruments and meters as well as LED modules. The low-profile design saves internal equipment space and meets the product miniaturization requirements.
• Automotive Aftermarket Sector: Power supply wiring connection for vehicle-mounted audio-visual systems and driving recorders. The vibration-resistant and stable transmission characteristics adapt to the vehicle operating environment.

Deke Manufacturing

Technological Innovation and Quality Assurance

Stringent Certifications Build a Quality Barrier and Lay a Solid Foundation for Development

          Deke Electric attaches great importance to the construction of its quality management system. It has successively obtained the IATF 16949 International Automotive Quality Management System Certification and ISO 9001 Quality Management System Certification, implementing standardized control throughout the entire process from raw material procurement to finished product delivery. The products have passed a number of domestic and international safety certifications including UL, RoHS and REACH, achieving stable operation in scenarios such as new energy charging piles and smart grids. In 2025, relying on its outstanding performance in key indicators such as terminal insertion and extraction life and anti-electromagnetic interference, the company obtained the certification qualification of the Connector Industry Standard Leader, marking that its product performance has reached the international advanced level. → Details of Relevant Qualifications/Environmental Certificates (Click here to view)

Deke Manufacturing

High Quality at Budget-Friendly Prices — Truly Great and Highly Affordable

         If you are interested in our SDN3.96 terminal connectors, or have any questions regarding connection solutions, please feel free to contact us via the following methods at any time.