The 48W medical grade power adapter YN48MED features adjustable 9-30VDC wide-range voltage output, certified to IEC EN60601, designed to provide stable and safe power for medical equipment such as patient monitors.
Technical Specifications
| Input Voltage | AC 100-240V 1.5A (Universal) |
| Output Voltage | 9-30VDC (Wide Adjustable Range) |
| Output Current | 0.01-5A (Flexibly Adjustable) |
| Maximum Power | 48W |
| Certification Standards | IEC EN60601, UL, CE, FCC, RoHS |
| Application Fields | Medical imaging equipment, patient monitors, and other medical electronic devices |
Product Features
- Medical Grade Safety Certification: Certified to IEC EN60601 and other international medical standards, ensuring electrical isolation and patient safety in critical medical applications, meeting high reliability requirements.
- Wide Voltage Output: Supports 9-30VDC adjustable output, adaptable to various medical device power needs, allowing flexible adjustment without replacing the adapter.
- High Reliability Design: Optimized for continuous operation environments, using high-quality components and heat dissipation structures to ensure long-term stable power supply and reduce equipment failure risk.
- Universal Input: AC 100-240V wide voltage input, compatible with global grid standards, facilitating cross-border use of medical equipment.
- Flexible Current Adjustment: Output current adjustable from 0.01-5A, precisely matching different device loads, improving energy efficiency and extending device lifespan.
- Compact and Efficient Structure: Maintains a small form factor at 48W maximum power, easy to integrate into medical equipment, saving space.
Applicable Scenarios
- Consumer Electronics
Smartphones, tablets, laptops, gaming consoles for PD fast charging and conventional charging, supporting PD3.0/QC4+/PPS full protocols. - Medical Equipment Power Supply
Patient monitors, ventilators, portable medical devices, ultra-low leakage current, certified to IEC EN60601 medical grade. - Industrial Control & LED Lighting
Industrial switches, industrial PCs, LED displays, security surveillance, wide voltage 9-58VDC adjustable, adaptable to harsh grid environments. - Network Communication & IoT
Routers, switches, fiber optic terminals, IoT gateways, high-reliability uninterrupted power supply, certified to UL/CE/FCC.
Frequently Asked Questions
What is the output ripple of this power adapter? Does it affect precision equipment?
The output ripple (Ripple & Noise) of this unit is ≤1% of the rated voltage (typical value), e.g., for a 12V model, 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 audio noise, measurement errors, or abnormal device restarts. Please contact Yingna Technical Support with your application details for the most suitable model recommendation.
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 select 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 – Reduced cooling efficiency requires derating. If your application environment has special requirements, please inform us in advance; Yingna can provide customized solutions.
Can I customize the logo and packaging after purchasing this power adapter?
Yes. Yingna Technology offers OEM customization services: ① Housing logo – Silk screen/pad printing/laser engraving (MOQ 500 units);
② Custom packaging – Color box/white box/neutral packaging (brand, model, parameters can be customized);
③ Product label – Including customer model number, certification marks, SN code, etc.;
④ Factory parameters – Output voltage can be preset according to customer specifications;
⑤ Multi-language manual customization. OEM customization MOQ is typically 500 units, with delivery 15~25 working days after sample confirmation. Standard products (no customization) have an MOQ of 100 units, with stock items shippable within 48 hours.
What is the polarity of this power adapter's connector? Center positive or center negative?
The default DC connector polarity for this unit is center positive (positive terminal at the center), which is the standard for the vast majority of electronic devices. A few special devices (e.g., some communication equipment, guitar effects pedals) require center negative. Before use, check the original adapter label or the polarity marking on the device (usually indicated by a "-○ +" symbol, where the dot represents the center polarity). If the device requires center negative, Yingna can provide a reverse polarity DC connector, or the customer can rewire the connection themselves (does not affect the warranty). Note: Incorrect polarity may damage the device; please confirm the polarity is correct before first use.
What is the Energy Efficiency Level VI? What are the requirements for power adapters?
Level VI is the sixth-generation energy efficiency standard established by the US Department of Energy (DoE), mandatory since February 2016. Core requirements: ① No-load power consumption ≤0.1W (Level V was 0.3W);
② Average conversion efficiency ≥87% (for models ≥150W) or ≥87.3% (<150WLevel VLevel VI15~20%Level VIErP
What type of plug does this power adapter have? Can it be changed?
The default 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 feature a replaceable plug design (modular plug), allowing one adapter to be used with multiple country-specific plug modules for global use. To change the plug, simply pull out the existing plug module and insert the new one; no tools are required. If your device needs to be sold in multiple countries, we recommend choosing the replaceable plug version (for greater flexibility) or specifying the plug type for the target market (for lower cost).
What is the lifespan of this power adapter? Will leaving it plugged in permanently damage it?
The design lifespan of this unit is ≥50,000 hours (MTTF, Mean Time To Failure), equivalent to approximately 5.7 years of continuous operation under rated load and normal temperature. Leaving it plugged in permanently will not damage the adapter. This unit complies with the Level VI energy efficiency standard, with no-load power consumption<0.1W
What certifications does this power adapter have? Does it have UL/CE/FCC certificates?
This unit is certified to UL (US safety certification), CE (EU safety certification), and FCC (US electromagnetic compatibility). Some models also offer optional certifications such as PSE (Japan), KC (Korea), SAA (Australia), and CCC (China Compulsory Certification). The UL certification number is traceable, and CE declaration documents are complete. For bulk purchases, we can provide a copy of the UL certification, CE declaration, and FCC test report 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 difference between a PD fast charger and a regular adapter?
A PD fast charger supports the USB PD (Power Delivery) protocol. Key advantages: ① Intelligent voltage regulation – Outputs multiple voltage levels (5V/9V/12V/15V/20V, etc.) via USB-C, intelligently matching device requirements;
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 – A single adapter can be used for phones, tablets, laptops, etc. A regular adapter outputs a fixed voltage (single voltage), suitable for powering a single device. If your device supports the PD protocol (e.g., iPhone, MacBook, iPad), it is recommended to use a PD fast charger.
What is the difference between medical-grade power adapters and ordinary power adapters?
Medical-grade power adapters must comply with the IEC EN60601 standard. Key differences: ① Leakage current — ordinary adapters ≤0.5mA, medical-grade ≤0.1mA (BF type ≤0.1mA for patient contact parts);
② Isolation voltage — ordinary adapters 2×MOPP (4000VAC), medical BF type must meet BF type applied part requirements;
③ Insulation class — must meet double or reinforced insulation requirements;
④ Creepage distance and clearance — ≥8mm (BF type applied parts). Medical equipment (monitors, ventilators, etc.) must use medical-grade adapters; ordinary adapters are prohibited for medical applications.
Does this power adapter have protection functions? What happens during overcurrent or overvoltage?
This unit features multiple built-in safety protections: ① Overvoltage protection (OVP) — automatically shuts down when output voltage exceeds the set value (typically 110~120%) to prevent damage to downstream equipment;
② Overcurrent protection (OCP) — automatically limits current or shuts down when output current exceeds the rated value;
③ Short circuit protection (SCP) — immediately shuts down when output is short-circuited, and automatically recovers after the short circuit is removed;
④ Overtemperature protection (OTP) — reduces power or shuts down when internal temperature exceeds 85°C, and automatically recovers after cooling. The adapter automatically restores power after fault clearance, no manual restart required.
How to choose the right DC connector? What are the differences between DC connector specifications?
Selecting a DC connector requires confirming three parameters: ① Outer diameter (OD) × Inner diameter (ID), common specifications include 5.5×2.5mm, 5.5×2.1mm, 3.5×1.35mm, etc.;
② Polarity — most devices use center positive and outer negative (center positive), while a few special devices use center negative and outer positive; check the original adapter label of your device to confirm;
③ Rated current — the DC connector's rated current must be ≥ the adapter's output current. This unit comes standard with a 5.5×2.5mm center positive/outer negative DC connector, and can be replaced with other specifications as needed, simple replacement without tools.
