The 48W Adjustable Power Adapter YN48W is a desktop/desk-top power supply with an output of 9-24VDC and a current of 0.01-5A. Its core value lies in providing stable and adjustable DC power for different devices through multi-country plugs and certifications.
Technical Specifications
| Parameter | Specification |
| Model | YN48W |
| Input Voltage | AC 100-240V 1.5A |
| Output Voltage | 9-24VDC Adjustable |
| Output Current | 0.01-5A |
| Maximum Power | 48W |
| Form Factor | Desktop / Interchangeable Head / Desk-Top (Three Form Factors) |
| DC Connector Type | Optional (Multiple Specifications) |
| Plug Standard | Multi-Country Plugs (Interchangeable) |
| Certifications | UL, CE, FCC, KC, PSE, SAA, RoHS |
| Application Areas | Monitors, All-in-One PCs, Security Surveillance, LED Lighting, Industrial Control, etc. |
Product Features
- Three Form Factors for Flexible Adaptation: Supports three installation forms: desktop, interchangeable head, and desk-top. It can be freely switched based on equipment layout and space requirements, meeting scenarios such as monitor wall-mounting, desktop placement, or embedded installation.
- Interchangeable Multi-Country Plug: Comes with a standard interchangeable plug covering major global standards such as UL (USA), CE (EU), KC (Korea), PSE (Japan), SAA (Australia), etc. No additional adapters are needed for travel or exported equipment.
- Wide Voltage Adjustable Output: Output is adjustable from 9-24VDC, with a current range of 0.01-5A and a maximum power of 48W. Precisely match the voltage requirements of different devices via a knob or jumper, compatible with monitors, all-in-one PCs, security cameras, etc.
- Universal Wide Voltage Input: Supports AC 100-240V wide voltage input, automatically adapting to various national power grids without manual switching, ensuring stable operation in environments with voltage fluctuations.
- Multiple Safety Protections: Built-in over-voltage, over-current, short-circuit, and over-temperature protection mechanisms. Certified by international authorities such as UL, CE, FCC, KC, PSE, SAA, ensuring equipment and personal safety.
- Optional DC Connector with High Compatibility: Offers various DC connector specifications (e.g., 5.5×2.5mm, 5.5×2.1mm), compatible with power interfaces of different brand devices, reducing conversion losses.
Application Scenarios
- Consumer Electronics
Smartphones, tablets, laptops, game consoles, etc., for PD fast charging and conventional charging, supporting PD3.0/QC4+/PPS full protocols. - Medical Equipment Power Supply
Patient monitors, ventilators, portable medical devices, with ultra-low leakage current, certified to IEC EN60601 medical grade. - Industrial Control & LED Lighting
Industrial switches, industrial PCs, LED displays, security surveillance, with a wide adjustable voltage range of 9-58VDC, adapting to harsh grid environments. - Network Communication & IoT
Routers, switches, fiber optic terminals, IoT gateways, providing high-reliability uninterrupted power supply, certified by UL/CE/FCC.
Frequently Asked Questions
What is the warranty period and after-sales service for this power adapter?
This unit has a standard warranty period of 2 years. Non-human damage within the warranty period is repaired or replaced free of charge. Domestic customers enjoy a 48-hour response time and repair completion within 7 working days; overseas customers can arrange for DHL/FedEx repair shipment or local agent warranty. Products beyond the warranty period are eligible for paid repair services (cost approximately 30-50% of a new unit). Lifetime technical support (selection consultation, application solution design) is provided. Annual framework agreement customers enjoy value-added services such as priority production scheduling, free samples, and factory inspection support. Bulk purchases (500 units or more) can apply for an extended warranty of up to 3 years.
What is the output ripple of this power adapter? Does it affect precision equipment?
The output ripple & noise of this unit is ≤1% of the rated voltage (typical value). For example, a 12V model has a ripple ≤120mVp-p. For applications sensitive to ripple, such as audio equipment, precision measuring instruments, and medical devices, it is recommended to choose a model with lower ripple (≤50mVp-p) or add an LC filter circuit. Excessive ripple may cause issues like audio background noise, measurement errors, or abnormal equipment restarts. Please contact Yina Technical Support to inform them of your application and get the most suitable model recommendation.
What type of plug does this power adapter have? Can it be changed?
The standard plug type for this unit is selected based on the target market (US Type A/B, EU Type C/F, UK Type G, AU Type I, etc.). Many models support an interchangeable plug design (modular plug), allowing one adapter to be equipped with multiple country plug modules for global use. To change the plug, simply pull off the existing plug module and insert the new one; no tools are required. If your equipment needs to be sold in multiple countries, it is recommended to choose the interchangeable plug version (for increased flexibility) or specify the plug type for the target market (for lower cost).
Is this power adapter a constant voltage output or an adjustable output?
This is determined by the model specifications: Fixed voltage versions output the nominal voltage (e.g., 12V/24V) and are suitable for most standard equipment; adjustable voltage versions allow the output voltage to be adjusted within a specified range (e.g., 9-48V adjustable) via a potentiometer knob, suitable for R&D testing and multi-device compatibility scenarios. Usage notes for adjustable versions: ① Disconnect the load before adjusting;
② Confirm the voltage matches the device after adjustment before powering on;
③ For long-term use, it is recommended to fix the knob position to prevent accidental changes. For batch applications, it is recommended to choose the fixed voltage version (more stable, lower cost).
Can this power adapter be used outdoors or in harsh environments?
This unit is suitable for indoor environments (operating temperature 0-40℃, relative humidity 20-80%). Special handling is required in the following harsh environments: ① High temperature (>40℃) – Derate usage (reduce power by 15% for every 10℃ increase), or choose an industrial-grade wide-temperature model (-20~60℃);
② High humidity – Install a moisture-proof sealed enclosure;
③ Outdoor exposure – Choose an IP67 waterproof model or install a waterproof enclosure;
④ High altitude areas – Reduced heat dissipation efficiency requires derating. If your application environment has special requirements, please inform us in advance, and Yina can provide customized solutions.
Does this power adapter support global voltage input?
This unit supports AC 100~240V wide voltage input, covering major global grid standards (USA 110V, Europe 220V, Japan 100V, Australia 230V, etc.), and supports 50/60Hz frequency. Combined with the interchangeable plug design, one adapter can be used in any country worldwide, making it particularly suitable for export product support and international projects.
What certifications does this power adapter have? Does it have UL/CE/FCC certificates?
This unit is certified by UL (USA safety certification), CE (EU safety certification), and FCC (USA electromagnetic compatibility). Some models are optionally certified by PSE (Japan), KC (Korea), SAA (Australia), CCC (China Compulsory Certification), etc. The UL certification number is traceable, and CE declaration documents are complete. For bulk purchases, copies of UL certification, CE declaration, and FCC test reports can be provided simultaneously, ensuring smooth export customs clearance and customer factory audits. For overseas customers with special certification requirements, separate certification applications can be arranged.
What is the polarity of this power adapter's plug? Is it center positive or center negative?
The default polarity of this unit's DC connector is center positive (positive at the center pin), which is the standard for the vast majority of electronic devices. A few special devices (e.g., some communication equipment, guitar effects pedals) use center negative. Before use, check the original adapter label or the polarity marking on the device body (usually indicated by a "-○ +" symbol, with the dot representing the center polarity). If the device requires center negative, Yina can provide a reverse polarity DC connector, or the customer can rewire it themselves (without affecting the warranty). Note: Incorrect polarity may damage the device. Please confirm the polarity is correct before first use.
What is Energy Efficiency Level VI? What are the requirements for power adapters?
Level VI is the sixth-generation energy efficiency standard established by the U.S. Department of Energy (DoE), mandatorily enforced since February 2016. Core requirements: ① No-load power consumption ≤ 0.1W (Level V is 0.3W);
② Average conversion efficiency ≥ 87% (for models ≥ 150W) or ≥ 87.3% (<150WLevel VLevel VI15~20%Level VIErP
What is the maximum output power of this power adapter? What load can it support?
The maximum output power of this unit is determined by the model specifications. When selecting adapter power, it is recommended to calculate the minimum rated adapter power as "device power ÷ 0.8" (i.e., P_adapter ≥ P_device ÷ 0.8). For example, if the device requires 200W, choose an adapter of 250W or higher. Selecting too low a power will cause the adapter to overheat under load and shorten its lifespan, while selecting too high a power increases procurement costs and size.
What is the difference between a PD fast charger adapter and a regular adapter?
PD fast charger adapters support the USB PD (Power Delivery) protocol, with core advantages: ① Intelligent voltage regulation—outputs multiple voltage levels such as 5V/9V/12V/15V/20V via USB-C interface, intelligently matching device needs;
② Bidirectional power supply—supports both forward and reverse charging;
③ High power—supports up to 100W for PD3.0 and up to 240W for PD3.1;
④ Multi-device compatibility—one adapter for phones, tablets, laptops, etc. Regular adapters output a fixed voltage (single voltage) and are suitable for powering a single device. If your device supports the PD protocol (such as iPhone, MacBook, iPad, etc.), it is recommended to choose a PD fast charger adapter.
Can I customize the logo and packaging after purchasing this power adapter?
Yes. Winna Technology offers OEM customization services: ① Housing logo—silkscreen/pad printing/laser engraving (MOQ starting from 500 units);
② Custom packaging—color box/white box/neutral packaging (brand, model, and parameters can all be customized);
③ Product label—includes customer model, certification marks, SN code, etc.;
④ Factory parameters—output voltage can be preset per customer specifications;
⑤ Multilingual manual customization. The MOQ for OEM customization is typically 500 units, with delivery 15-25 working days after sample confirmation. For standard products (no customization), the MOQ is 100 units, and in-stock items can be shipped within 48 hours.
