Shenzhen Boerze Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of 12v7a ac dc adapter extension cable in China. With abundant experience, we are committed to providin high quality customized products made in China with low price. Please feel free to buy cheap 12v7a ac dc adapter extension cable from our factory. Welcome to contact us for free sample.
Product advantage of 12v7a AC DC Adapter Extension Cable
1. DC 12V 7A desktop power adapter with a rated power of 84W; features high current output and ample power headroom, making it ideal for powering a wide range of high-power DC devices.
2. We can provide 1–2 free samples, along with product specifications and test reports, for your testing and evaluation.
3. This high-power desktop adapter delivers robust power output with excellent anti-interference performance and extremely low DC ripple, ensuring minimal interference with LED lights and electronic displays.
4. Designed for low-temperature operation, this adapter experiences slower component aging, resulting in a long service life. It comes with a 1-year warranty, including free replacement for any non-accidental damage within the first year.
5. The power supply utilizes a vacuum-impregnation process, ensuring superior insulation for the high-frequency transformer.
6. Every unit undergoes a rigorous 4 to 8-hour high-temperature, full-load burn-in test to ensure a low failure rate and exceptional product reliability.
7. The unit features comprehensive built-in protection-including overcurrent, overvoltage, short-circuit, overtemperature, and overload protection-to effectively safeguard your equipment.
8. Offered via factory-direct sales, our products are competitively priced, quality-assured, and backed by reliable after-sales support.
Product Parameters
|
Product name |
12v7a ac dc adapter extension cable |
|
Brand |
BOERZE |
|
Type No. |
BRZ-12V7A |
|
Input voltage |
110-240V |
|
Output voltage |
DC12V |
|
Output current |
7A |
|
Rated power |
84W |
|
Working frequency |
50-60Hz |
|
Size |
113*55*33mm |
|
Weight |
325g |
*AC DC Connector Can Be Customized
1. The AC input plug can be customized:
US UK EU AU CN SANS India Korea
2. The DC output connector can be customized:
5.5*2.5mm, 5.5*2.1mm, 2.0*0.6mm, 2.5*0.7mm, 3.0*1.1mm, 3.5*1.35mm, 4.0*1.7mm, 4.5*2.7mm, 4.8* 1.7mm, 6.3*3.0mm, 7.4*5.0mm, 7.9*5.5mm, Cigarette Butt Connector, USB, TYPE-C
3. The line length can be customized:
1m, 1.2m, 1.5m, 1.8m, 2.0m, 2.5m, 2.8m, 3m, 3.5m...
Application Scenario of 12v7a AC DC Adapter Extension Cable
Security & Surveillance Industry
- Multi-channel NVRs (Network Video Recorders) and surveillance host units
- High-speed PTZ (pan-tilt-zoom) cameras and centralized power supply units for multi-camera systems
- Comprehensive access control systems (multi-door controllers and networked electronic locks)
- Industrial-grade alarm control panels and security detection equipment
LED Lighting & Architectural Illumination Industry
- High-power LED strips and high-density LED modules
- Large-scale illuminated signage (channel letters) and backlighting for outdoor billboards
- Architectural wall-washers and landscape lighting equipment
- Power supply solutions for commercial advertising displays and digital menu boards
Industrial Control & Automation Industry
- Embedded industrial motherboards and industrial control units (ICUs)
- Small-scale automation equipment and sensor-based data acquisition systems
- Stepper motor drivers and small pump drive systems
- Power supply for laboratory testing instruments and inspection equipment.
Commercial Equipment & Consumer Electronics
- High-power beauty devices, hair removal systems, and physical therapy equipment
- POS (Point of Sale) terminals and self-service kiosks
- Charging docks for high-capacity 12V lithium battery packs
- Power supply solutions for small 3D printers and CNC (computer numerical control) equipment.
Our Factory
Since the 1990s, our company has been deeply rooted in the power supply industry. We are a comprehensive manufacturer of power equipment, integrating R&D, design, production, sales, service, and customized processing. Drawing on decades of industry experience, we specialize in the innovation and manufacturing of a wide range of power supply products for consumer, commercial, and industrial applications. Backed by a mature technical framework, rigorous quality control standards, and flexible customization capabilities, we have established a strong presence in both domestic and international markets, serving a global clientele and earning a reputation as a highly capable and respected provider of power supply solutions.
As an established, primary manufacturer with decades of expertise, we have built an end-to-end industrial chain-encompassing everything from the direct procurement of raw materials to in-house production and comprehensive, full-process oversight. This model eliminates intermediary markups and allows us to strictly control production costs and waste at the source. Leveraging mature manufacturing processes, large-scale production capacity, and a robust supply chain, we ensure that our products meet high standards of quality, performance, and stability, while simultaneously offering a significant price advantage. We consistently deliver on our promise of "better prices for the same quality, and superior quality for the same price," providing our customers with highly cost-effective power supply products that help them substantially reduce their procurement expenses.
.
2000㎡
About 2000 square meters of factory area
100 people
More than 100 employees
50 units
50 units of production equipment
1year
1-year warranty with free replacement
FAQ
Q: When operating at full load (12V/7A), what is the typical output ripple level during dynamic load fluctuations? Could it interfere with downstream equipment?
A: Generally, full-load ripple is kept within 120mV (measured at 20MHz bandwidth). If the downstream equipment-such as a motherboard or camera capture device-is highly sensitive to noise, this could cause issues; in such cases, additional filtering can be implemented. Note that frequent starting and stopping of the load can cause momentary spikes in ripple, so we recommend that clients test with their actual loads during the initial sampling phase.
Q: What are the effects of electrolytic capacitor degradation if the power supply operates continuously 24/7?
A: Electrolytic capacitors are the primary components responsible for power supply aging. Their degradation can lead to increased ripple and higher operating temperatures. Using long-life capacitors can effectively slow this degradation, making the unit suitable for applications that require constant power, such as LED lighting, security systems, or industrial control equipment.
Q: Can the unit still provide a stable 12V/7A output if the input voltage is on the low side?
A: For units with a wide input voltage range (typically AC 100–240V), the rated 12V/7A output can be maintained even at an input of AC 100V. However, please note that lower input voltages result in higher internal power loss within the adapter, causing it to heat up more rapidly.
Q: Could the output become intermittent during high/low-temperature testing?
A: Under standard high/low-temperature testing, the output should not become intermittent. However, extremely rapid temperature cycling might cause temporary shifts in the parameters of certain components, potentially triggering protection mechanisms. If your product will undergo high/low-temperature cycling tests, please inform us in advance so we can implement more rigorous screening.
Q: What factors should be considered if the adapter is placed inside a sealed plastic enclosure where heat may accumulate?
A: Sealed environments offer poor heat dissipation; therefore, continuous full-load operation is not recommended. If the ambient temperature exceeds 35°C, we advise derating the output to within 80% of the rated capacity. Additionally, please ensure that ventilation gaps are provided during installation.
Q: In what scenarios is EMI (electromagnetic interference) likely to exceed limits, and how can this be improved?
A: When the backend load consists of pulsed devices-such as motors or high-frequency circuit boards-it is common for EMI levels to accumulate and exceed regulatory limits. If the device already includes built-in EMI filtering but still fails to meet standards, an external ferrite bead (or magnetic ring) can be added to the input cable; in fact, we often include such ferrite beads on the input cables of many of our power adapters.
Q: What is the specific standby power consumption?
A: No-load standby power consumption is typically <0.2W, which meets mainstream energy efficiency requirements.
Q: How long does the burn-in (aging) test usually last, and what are the factory screening criteria?
A: Unless the customer specifies otherwise, we generally perform a full-load burn-in test for 2–4 hours-with 4 hours being the standard, though 8-hour tests are also conducted. During this process, we monitor voltage and temperature to identify and remove any defective units, ensuring that only qualified products are shipped.
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