This product is a high-performance DC power cord (DC connecting cable), designed for powering various electronic devices. It features a pure copper conductor and PVC insulation jacket, offering excellent conductivity and durability. It is compatible with multiple interface specifications such as DC5521 and DC2.5, meeting DC power transmission needs in different scenarios. Product Features: High-quality copper core: Uses high-purity oxygen-free copper for low resistance, high conductivity efficiency, and reduced energy loss. Precision injection-molded connectors: One-piece molded connectors ensure secure insertion and removal, good contact, and effectively prevent loosening or detachment. Flexible and durable jacket: Eco-friendly PVC material, flexible, tensile-resistant, and bend-resistant, suitable for wiring in tight spaces. Wide compatibility: Supports common interfaces like DC5521, DC2.5, and DC3.5, compatible with power adapters, surveillance cameras, LED strips, and other devices. Safety certifications: Compliant with RoHS standards, high flame retardant rating, providing peace of mind during use. Technical Specifications: Rated Voltage: DC 12V / 24V (higher voltages customizable), Rated Current: 2A / 5A (depending on wire gauge), Conductor Material: Pure oxygen-free copper (tinned option available), Insulation Material: PVC / Silicone (optional), Interface Type: DC5521 female/male, DC2.5 female/male, etc., Cable Length: 0.5m / 1m / 1.5m / 3m (customizable). Application Scenarios: LED Lighting: Connecting LED strips and light bar power adapters. Security Surveillance: Powering cameras and DVRs. Network Equipment: DC power supply for routers, switches, fiber optic modems, etc. Electronic Products: Portable speakers, digital photo frames, etc. Industrial Control: Sensors, PLC modules, relays, and other low-voltage DC devices.
Technical Specifications
| Terminal Type | DC5521 Plug |
| Wire Gauge | 18AWG |
| Rated Voltage | 12V DC |
| Rated Current | 5A |
| Operating Temperature | -20°C ~ +80°C |
| Insulation Material | PVC |
| Certifications | CE, RoHS |
Product Features
- Plug adopts DC5521 standard interface, strong compatibility
- Cable is flexible and durable, suitable for frequent movement
- Supports customized cable length and terminal processing
- Good insulation performance, safe and reliable
- Suitable for DC power supply scenarios such as power adapters and surveillance equipment
Application Scenarios
- Home Appliances and Consumer Electronics
Custom power cords, signal cables, and ribbon cables, meeting ROHS/REACH environmental standards, suitable for white goods and small appliances. - Automotive Electronics and New Energy
Automotive wiring harnesses, sensor harnesses, high-voltage connection harnesses, passing TS16949 quality system, resistant to high temperature and vibration. - Industrial Automation and Equipment
Robot harnesses, servo motor harnesses, drag chain cables, high flexibility and bending resistance, adapting to complex industrial environments. - Medical Device Harnesses
Medical-grade harness customization, biocompatible materials, precision terminal crimping, suitable for monitors, ultrasound equipment, etc.
Frequently Asked Questions
What after-sales services are provided after purchasing a harness?
Yingna Technology harness products come with a standard 2-year warranty. Non-human damage within the warranty period is repaired or replaced free of charge. Domestic customers enjoy a 48-hour response and repair completion within 7 working days; overseas customers can arrange repair via DHL/FedEx. Products beyond the warranty period are eligible for paid repair services (cost approximately 30-50% of a new product). Lifetime technical support is provided, including harness selection consultation, terminal processing solutions, and quality issue diagnosis. Annual framework agreement customers enjoy value-added services such as priority production scheduling, free samples, and factory inspection support.
What is the minimum order quantity for custom harnesses? How are sample fees calculated?
The minimum order quantity (MOQ) for standard harness products is 1000 meters per specification; for simple customization (e.g., color, printing), the MOQ can be as low as 500 meters. First-time cooperation can arrange sampling: sample length 1-5 meters, sample fee 200-500 RMB (including UL certification label), and the sample fee is refunded upon batch order. Batch order delivery time is typically 7-15 working days (depending on quantity and complexity). Rush orders can be scheduled for expedited production (expedite fee approximately 15%), reducing delivery time to 3-5 working days.
What certifications does this harness have? Can certification reports be provided?
This harness has UL (USA) and CE (EU) certifications, complying with RoHS environmental and REACH regulatory requirements. The UL certification number is traceable, and CE declaration documents are complete. For bulk purchases, the following can be provided simultaneously: UL certification copy, Material Declaration Sheet (MDS), SGS environmental test report, and product flame retardant test report. For customers with special certification requirements (e.g., VDE, CCC, PSE, KC), please inform in advance to arrange separate certification applications.
Can the color of the harness be customized?
Any color can be customized; typically, providing a Pantone color number or color swatch is sufficient for color matching. Common stock colors: black, white, red, blue, yellow, green (24-48 hour delivery). Custom color MOQ depends on the specification (usually 1000 meters minimum), with delivery extended by 3-5 working days. Printing/stamping service: Model numbers, logos, certification marks, etc., can be printed on the harness surface as required, supporting both thermal transfer and inkjet printing processes. Please provide a draft of the printing content before confirmation to avoid errors.
What is the insulation material of this harness? Does it meet environmental requirements?
The insulation material for this harness uses silicone rubber or PVC material, selected according to the model and specification. Silicone rubber withstands temperatures from -60°C to 200°C, PVC from -20°C to 105°C. The entire series of wires complies with RoHS 10-item testing and REACH SVHC screening, free of lead, mercury, cadmium, and other hazardous substances, and third-party SGS test reports can be provided. Electronic wires exported to North America must meet UL VW-1/FT2 flame retardant ratings, and those exported to Europe must meet the CE Low Voltage Directive.
Will the harness age after long-term use? How can its service life be extended?
Under normal usage conditions, the silicone rubber material has a service life of 10-15 years, and PVC material 5-8 years. Factors affecting lifespan: ① Operating temperature – prolonged operation at the rated temperature limit accelerates aging (halving lifespan);
② Bending frequency – use high-flexibility harnesses for frequent bending applications (bending life ≥10 million cycles);
③ Environmental factors – UV rays, ozone, and chemical solvents accelerate aging of the silicone rubber outer layer. Suggestions for extending lifespan: maintain a 20% margin below the operating temperature, avoid contact with chemical solvents, add protective sleeves for fixed wiring, and regularly check terminal crimping points for heat generation.
What is the temperature range of the harness? Can it be used long-term in high-temperature environments?
The temperature range of this harness depends on the insulation material: silicone rubber insulation -60°C to +200°C (short-term peak 250°C), PVC insulation -20°C to +105°C. In high-temperature environments (e.g., automotive engine compartments, industrial furnace surroundings, inside new energy vehicle battery packs), silicone rubber material harnesses must be used; PVC material will accelerate aging and insulation cracking in such scenarios. For low-temperature environments (e.g., outdoor polar regions) or high-low temperature cycling situations, silicone rubber harnesses are also recommended.
What is the flame retardant rating of the harness? Does it meet the UL VW-1 standard?
The flame retardant rating of this harness reaches UL VW-1 (vertical flame test), which is the minimum flame retardant requirement of the UL 758 electronic wire standard. Higher flame retardant ratings are optional: UL VW-1 + vertical flame, UL FT2 (horizontal flame), UL VW-1 + FT2 dual certification. Significance of flame retardant standards: A harness passing VW-1, in a vertical flame test with 5 applications of 15-second burns, self-extinguishes within 60 seconds, does not ignite the cotton below, and has no burning drips. For applications with high fire protection requirements (e.g., inside new energy vehicle battery packs, medical equipment), harnesses with higher flame retardant ratings are recommended.
What is the minimum bending radius of the harness? Can it be used for wiring in tight spaces?
The minimum bending radius of this wire harness is 5 times the cable diameter, far less than the 10 times requirement for ordinary PVC cables. Due to the multi-strand ultra-fine tinned copper wire stranded structure, the harness offers excellent flexibility, allowing flexible routing in tight spaces such as mobile phones, sensors, automotive door panels, and LED fixtures, and it is resistant to core breakage even under frequent bending. For applications requiring an even smaller bending radius (e.g., robot drag chains), a high-flexibility drag chain-specific harness is recommended.
What is the difference between new energy vehicle wire harnesses and ordinary wire harnesses?
New energy vehicle (EV/HEV) wire harnesses must meet higher standards: ① Temperature rating — internal battery pack temperatures can reach 85~150°C, requiring silicone rubber wire harnesses (PVC is insufficient);
② Voltage rating — high-voltage connection harnesses withstand 600V~1000V, far higher than the ordinary 300V;
③ EMC shielding — high-voltage harnesses require a braided shielding layer to prevent electromagnetic interference (EMC, compliant with CISPR 25 standard);
④ Flame retardancy — VW-1 + Low Smoke Zero Halogen (LSZH);
⑤ Vibration resistance — terminal crimping must remain secure under high-frequency vibration environments (vehicle operation);
⑥ TS16949 automotive quality management system certification. Ordinary wire harnesses do not meet these requirements and are prohibited for use in new energy vehicles.
What is the conductor material of this wire harness? Bare copper or tinned copper?
This unit uses a multi-strand tinned copper wire conductor, balancing conductivity and corrosion resistance. Bare copper has a conductivity of approximately 101% IACS, while tinned copper is about 98% IACS (a difference of only about 3%). The advantages of tinning: 3~5 times better oxidation resistance, improved solderability (avoiding soldering issues), and significantly enhanced corrosion resistance. For high-reliability applications such as new energy vehicles and outdoor equipment, tinned copper wire harnesses are recommended.
What is the difference between national standard (GB) wire harnesses and American standard (UL) wire harnesses?
The main differences between the national standard (GB/T 5023) and the American standard (UL 758/AWM): ① Nominal cross-section — GB uses mm² (e.g., 0.5/0.75/1.0mm²), while UL uses AWG (e.g., 22/20/18AWG);
② Test methods — GB focuses on conductor resistance and insulation resistance, while UL focuses on mechanical properties (bending/tensile/impact);
③ Certification labels — UL standard harnesses must print UL/AWM numbers, while GB standard harnesses print CCC certification numbers;
④ Customer base — exports to the USA/Canada require UL certification, while domestic sales require CCC certification. Winna Technology wire harnesses comply with both GB and UL standards, with traceable UL certification numbers.
