I. Company Introduction
We are a high-tech enterprise deeply rooted in the precision electronic connector field, focusing on R&D, production and sales of DC power sockets, FFC/FPC flexible flat cables and matching connectors. We have built a fully independent operation system covering product design, mold development and large-scale production.
Equipped with 8 intelligent production lines integrating precision stamping, high-speed injection molding, automated assembly and multi-dimensional testing, we realize fully automated control of core processes. Our monthly production capacity of DC power sockets exceeds 5 million pieces, enabling efficient response to bulk orders and personalized customization needs.
We strictly follow the ISO9001 quality management system and IATF 16949 automotive industry standards. All products have passed RoHS, REACH, halogen-free and other international environmental certifications, with complete quality traceability files established for each batch.
With sophisticated manufacturing technology, stable product performance and full-cycle technical services, we provide reliable interconnection solutions for global customers in consumer electronics, industrial automation, automotive electronics, medical equipment and other fields, winning wide trust in the industry.
II. Product Features
Full-Metal Shell & Extended Positioning Pin Structure, Ultra-Stable Installation
DC-044A adopts an integrated extended positioning pin+full-metal shielded shell design, with 5-pin (5P) DIP through-hole configuration (3 power pins+2 reinforced positioning pins). The long positioning pin can penetrate thick PCBs and sheet metal panels, and can be locked with nuts; compared with ordinary short-pin sockets, vibration and impact resistance are increased by more than 55%, effectively avoiding loosening or falling off caused by equipment movement and vibration, which is very suitable for vehicle-mounted, industrial handheld terminals and outdoor monitoring scenarios. It is compatible with standard 5.5×2.1mm / 5.5×2.5mm DC plugs, without additional structural modification.
Standard size reference: 11.6×10.0×7.2mm, 90° DIP installation.
High-Conductivity & Durable Terminals, Safe and Stable Power Supply
Internal terminals are made of high-purity electrolytic copper, with nickel-tin double-layer plating on the surface, contact resistance ≤30mΩ, which greatly reduces voltage loss and heating risk during power supply, and ensures stable operation under rated current (DC 30V 5A for large-current models). Built-in elastic clamping reeds, uniform clamping force and excellent resilience, closely fit the power plug during plugging and unplugging, avoiding power failure or restart caused by poor contact; the plugging life is up to 8000 cycles, far exceeding the conventional industry level.
Polarized Anti-Reverse Insertion Design, Safe and Easy to Operate
Innovative polarized port and asymmetrical pin layout completely eliminate the safety hazards of circuit short circuits and equipment burnout caused by reverse insertion from the structure. The rounded chamfer design at the port edge prevents the plug wire from being scratched, and facilitates manual quick identification of the installation direction, improving the efficiency of mass production and assembly. Dust covers can be customized for optional models to block dust and oil when idle, extending the service life of the terminals.
High-Temperature Resistance & Wide Temperature Adaptability
The shell uses high-temperature flame-retardant PC engineering plastic, and the metal shell is treated with anti-oxidation plating, which can withstand 260℃ wave soldering/reflow soldering, no deformation, softening or cracking during welding, and is suitable for automated production lines. The operating temperature range is -40℃~120℃, resistant to high and low temperature cycle impact; it has excellent moisture resistance and corrosion resistance, and can work stably in 10%–95% relative humidity and light dust/oil environments, meeting the needs of harsh scenarios such as vehicle-mounted, outdoor security and industrial control.
III. Product Advantages
Digital Manufacturing Control, Excellent Quality Consistency
Introduce MES digital production management system to monitor stamping pressure, injection mold temperature, terminal plating thickness and positioning pin perpendicularity in real time, with parameter deviation controlled within ±0.01mm and ±1μm. Equipped with a multi-camera linked visual inspection system, it can accurately identify 15 types of defects including terminal offset, positioning pin skew and shell deformation, and the product defect rate is controlled below 0.08%, ensuring stable and consistent quality for batch delivery.
IEC Standard Compatibility, Low Adaptation Cost
The pin spacing and installation dimensions comply with IEC international standards, and are compatible with library files of mainstream PCB design software such as Altium and Cadence, so customers do not need to adjust the board design plan. It can be directly matched with mainstream DC plugs on the market, reducing the mold modification cost caused by interface replacement and accelerating the project progress.
Flexible Production Response, Efficient Customization Service
The modular production system has a response speed 45% faster than the industry average for customized requirements such as special positioning pin length, socket height, terminal current rating and metal shell thickness. Regular specifications are in stock and can be shipped within 72 hours. Relying on independent mold development capabilities, we provide one-stop services from structural design, sample proofing to batch delivery, with the shortest sample cycle of only 3 working days.
Full-Cycle Technical Support, Worry-Free Cooperation
The professional technical team provides pre-selection guidance, mid-term welding process optimization and post-fault troubleshooting, with after-sales response time ≤ 24 hours. Products support forward material traceability and reverse defect traceability, and the entire production process data can be called up in real time, fully meeting the strict compliance requirements of the automotive, medical and industrial automation industries.
IV. Product Applications
It is widely used in various electronic devices that require stable DC power supply and anti-interference capabilities:
Consumer Electronics: High-power Bluetooth speakers, desktop audio, digital projectors, home game consoles, large-capacity power banks;
Automotive Electronics: On-board refrigerators, on-board intercoms, rear-seat entertainment screens, tire pressure monitors;
Industrial Automation: Industrial tablet computers, portable laser rangefinders, outdoor security cameras, wireless data collectors;
Medical Equipment: Portable ultrasonic diagnostic instruments, ECG monitors, medical nebulizers, rehabilitation physical therapy equipment;
Smart Home: Smart doorbells, security alarms, air purifiers, and backup power ports for smart door locks.
V. FAQ
Q1: How to quickly select the appropriate DC-044A model?
A1: Confirm three core dimensions:
① Positioning pin length, port specification (5.5×2.1 / 5.5×2.5mm) and whether a dust cover is required;
② PCB/sheet metal thickness, mounting hole diameter and welding process (wave soldering/reflow soldering);
③ Equipment operating environment (temperature, humidity, vibration frequency) and rated voltage/current requirements.
Our technical staff will provide accurate selection suggestions within 1 hour.
Q2: How to solve the problem of unstable power supply or poor contact during use?
A2: First cut off the power, check whether the plug is fully inserted and the fixing nut of the positioning pin is tightened. If there is contact pollution, gently wipe the internal terminals of the socket and the plug contacts with anhydrous alcohol and a superfine cotton swab, and reinstall and test after completely drying. If the problem persists, check for terminal oxidation or reed deformation, and it is recommended to replace it with the same specification DC-044A socket.
Q3: What key parameters are needed to customize the DC-044A long-pin power socket?
A3: Please provide the following core information:
① Basic specifications: positioning pin length, socket height, port inner diameter (2.1/2.5mm);
② Structural requirements: whether to install a dust cover, anti-misinsertion position, fixing method (nut locking/soldering);
③ Performance requirements: high temperature resistance level, plugging life, rated current and voltage;
④ Installation requirements: PCB/panel thickness, mounting hole diameter, welding process type;
⑤ Batch quantity and delivery cycle.
We will provide a detailed customization plan and quotation based on this.
