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  • RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop
  • RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop
  • RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop
  • RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop
  • RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop
  • RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop
RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop
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RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop

  • 5 - 149 Units
    $9
  • 150 - 999 Units
    $8.50
  • >= 1000 Units
    $8

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 1000 pieces）
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RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Step-Down Voltage Conversion: Efficiently converts 48V input to a stable 19V output, supporting up to 10A current for high-power devices like laptops, industrial tools, or automotive electronics.
  • High-Efficiency Power Supply: Achieves 94% efficiency, minimizing energy loss and heat generation, ideal for long-term use in renewable energy systems or continuous operation scenarios.

Key features

  • 1. Material Technology

    • With a corrosion-resistant metal enclosure, you can ensure durable operation in harsh environments, protecting against dust, moisture, and mechanical stress.

  • 2. Performance Parameters

    • With 94% efficiency, you can achieve energy savings of up to 20% compared to traditional models* while maintaining stable 19V output at 10A for high-power applications like laptops or industrial devices.

  • 3. Scenario Solutions

    • With compatibility for automotive and renewable energy systems, you can ensure reliable power conversion in diverse applications, such as solar setups or electric vehicle power distribution.

  • 4. Certification Standards

    • With CE certification, you can meet EU safety and environmental standards for commercial or industrial use, ensuring regulatory compliance and quality assurance.

  • 5. Interactive Design

    • With color-coded wiring for easy identification, you can simplify installation and reduce wiring errors, streamlining setup for both professionals and DIY users.

Product details

RCNUN 10A Step Down DC DC Converter 48 Volt Reducer 19 Volt Voltage Regulator 190W Power Supply for Laptop

The RCNUN 10A Step Down DC-DC Converter WG-48S1910 efficiently converts 48V input to a regulated 19V output (190W), offering high reliability for laptops, automotive systems, and renewable energy applications. Its 94% efficiency minimizes energy loss, while a robust metal enclosure ensures durability in harsh environments. CE certification guarantees compliance with EU safety standards.

Technical specifications

FeatureSpecificationBenefit
Input Voltage48V DCSupports high-voltage industrial systems
Output Voltage/Current19V/10A (190W)Powers high-demand devices like laptops
Efficiency94%Reduces heat generation and energy waste
Enclosure MaterialMetalEnhanced thermal dissipation and durability
CertificationCE CertifiedEnsures safety and compliance
Wiring ConfigurationColor-coded (Red/Black/Yellow)Simplifies installation and maintenance

Customization guide

Adjustable input/output voltage ranges (40-60V/12-24V) and current limits (up to 12A) enable customization for specialized applications. For example, modifying the output voltage to 12V can optimize compatibility with automotive batteries.

Get inspired

This converter is ideal for powering laptops in off-grid setups, stabilizing voltage in solar energy systems, or managing power distribution in electric vehicles. Its compact design and high efficiency make it a versatile solution for both commercial and industrial use cases.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Efficiency90%94%98%
Output Current8A10A12A
Protection FeaturesBasic OCP/OVPEnhanced OCP/OVP + SCPTriple Protection (OCP/OVP/SCP)
Operating Temp Range-20°C to 70°C-30°C to 85°C-40°C to 105°C

Supplier's note

  1. Technical Breakthroughs:

    • 94% Efficiency: Reduces energy waste by 20% compared to traditional 75% efficient converters.
    • Metal Enclosure: Provides 30% better thermal management than plastic alternatives.
    • CE Certification: Ensures compliance with EU safety standards for global deployment.

  2. Version Selection Guidance:

    • Base Model: Suitable for low-power applications (e.g., small IoT devices) where cost is prioritized.
    • Advanced Model: Ideal for most users needing 10A output (e.g., laptops, automotive systems).
    • Pro Model: Designed for industrial or extreme environments requiring high current and wide temperature tolerance.

With the Pro Model’s triple protection, you can safely handle voltage fluctuations in solar farms. The Advanced Model’s 94% efficiency ensures minimal heat buildup in compact spaces like electric vehicles. Choose based on your power demands and environmental conditions.

Frequently asked questions

  • Which DC-DC converter model suits 48V to 19V applications for laptops?

  • How do I maintain the RCNUN 48V to 19V converter for longevity?

  • Metal vs. plastic enclosures: Which is better for industrial DC converters?

  • Can the RCNUN WG-48S1910 be customized for different voltage/current needs?

  • Is the RCNUN converter CE-certified for EU projects?

  • Why is the RCNUN converter suitable for solar systems?

  • How does the RCNUN handle high-current loads compared to other DC converters?

  • Can this converter power devices requiring 190W continuously?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
EfficiencyHigh-power industrial systemsIndustry Standard: 85–90% efficiency
Our Base: 94% efficiency
Our Advanced: 96% efficiency▲
(Saves 2% more energy)		▲ Our Advanced: Reduced energy waste, lower operational costs.
Base: Meets most energy-efficient applications.		Higher efficiency often requires premium materials (e.g., low-loss semiconductors).
Output CurrentPower-hungry devices (e.g., servers)Industry Standard: 8A max
Our Base: 10A▲
(Supports 25% higher load)
Our Advanced: 12A▲▲
(Handles 50% more devices)		▲ Base: Powers high-current devices like laptops.
▲▲ Advanced: Ideal for multi-device setups.		Increased current may require thicker wiring and heat management.
Voltage RegulationSensitive electronics (e.g., medical gear)Industry Standard: ±5% tolerance
Our Base: ±2%▲
(Stable ±0.4V at 19V)
Our Advanced: ±1%▲▲
(Precision within ±0.2V)		▲ Base: Reduces voltage fluctuations for reliable operation.
▲▲ Advanced: Ensures critical systems avoid malfunctions.		Tighter regulation demands complex feedback circuits, raising costs.
Thermal ManagementHigh-temperature environments (e.g., solar panels)Industry Standard: Plastic housing (80°C max)
Our Base: Metal enclosure▲
(Operates up to 105°C)
Our Advanced: Active cooling▲▲
(Maintains 75°C even at full load)		▲ Base: Withstands harsh environments.
▲▲ Advanced: Prevents thermal shutdown in extreme conditions.		Metal enclosures add weight; active cooling increases noise.
Safety ComplianceEU-regulated marketsIndustry Standard: Basic certifications (e.g., RoHS)
Our Base: CE▲
(EU safety compliance)
Our Advanced: CE + UL▲▲
(Global market access)		▲ Base: Meets EU safety mandates.
▲▲ Advanced: Expands into North American and global markets.		Advanced certifications require additional testing and costs.
Size/WeightSpace-constrained installations (e.g., drones)Industry Standard: 150x80x40mm (450g)
Our Base: 140x70x35mm▲
(30% smaller)
Our Advanced: 120x60x25mm▲▲
(50% smaller, 320g)		▲ Base: Fits compact devices.
▲▲ Advanced: Ideal for portable or embedded systems.		Miniaturization may compromise heat dissipation or durability.

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