SHJY-500VA
Shunhong
N5003
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Product Features & Benefits
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Specially engineered for authentic Japanese electronics, the Shunhong SHJY-500VA (N5003) provides precise conversion from 220V domestic wall power down to dual stabilized 100V outputs. Encased in a sleek white fire-resistant ABS shell, it breaks away from bulky industrial converters to sit stylishly on dressing tables and bathroom vanities while powering hair styling tools, facial care devices, and personal electronics.
Dual Bilateral 100V Synchronous Output: One Unit Powers Two Japanese Appliances
Unlike ordinary single-socket converters, the SHJY-500VA features two independent 100V outlets on the left and right sides. Both ports deliver stable 100V Japanese standard voltage simultaneously, letting you connect two Japanese devices at the same time without needing multiple bulky boxes.
Toroidal Silicon Steel Core: High Efficiency, Low Heat & Rock-Solid 100V Stability
Crafted with premium cold-rolled grain-oriented toroidal silicon steel and precision-wound aluminum coils. Low internal impedance minimizes operating thermal rise, while conversion efficiency reaches ≥80%. Idle no-load current is barely ~7mA, delivering pristine 100V power to safeguard imported appliances.
One-Touch Power Rocker & Real-Time Status LED for Effortless Family Use
Equipped with an independent physical rocker switch and an illuminated power LED. Plug into a 220V wall socket and click the switch to start immediate 100V conversion. Eliminates the need to repeatedly unplug cords, preventing contact sparking and socket wear.
Whisper-Quiet (<20dB) Silent Passive Cooling for Bedroom & Living Areas
Engineered with dual-sided convection cooling ventilation slots that dissipate internal heat naturally through air circulation without noisy fans. Operating noise is strictly kept below 20dB, making it completely silent in bedrooms, dressing rooms, or quiet study rooms.
Non-Magnetic Lightweight Chassis: 100% Aviation & Rail Passenger Compliant
Weighing approximately 2.75kg with a compact 19×15×6.5cm footprint, the unit contains zero liquid electrolytes or unshielded magnets. Fully conforms to civilian aviation passenger luggage screening and high-speed railway security guidelines for easy relocation and travel.
Customization Support & 38-Year Factory Direct Quality Assurance
Backed by Shunhong’s established transformer manufacturing heritage since 1987. Supports OEM/ODM customization including UK/EU input plugs and custom output voltages. Certified under CE, RoHS, FCC, and CQC with rigorous 100% pre-shipment factory bench testing.
Dual 220V output transformer
Power button
Short-circuit protection
Bilateral convective heat dissipation
Flame retardant protection
Temperature control protection
Technical Specifications
| Product Model | SHJY-500VA（N5003） | Rated Apparent Power | 500VA (Peak Capacity) | |
| Voltage Transformation Direction | 220V to Dual 100V Step-Down | Frequency | 50Hz / 60Hz | |
| Net Weight | Approx. 2.75 kg (6.06 lbs) | Gross Weight (With Box) | Approx. 3.10 kg (6.83 lbs) | |
| Product Dimensions (L×W×H) | 19.0 × 15.0 × 6.5 cm (7.48 × 5.91 × 2.56 in) | Package Dimensions (L×W×H) | 26.0 × 25.0 × 14.0 cm (10.24 × 9.84 × 5.51 in) | |
| Input Connection Type | Integrated Power Cable (1.2m Length, 0.5mm² High-Conductivity Copper) | Output Socket Layout | Bilateral Dual 100V Sockets | |
| Core & Winding Architecture | High-Flux Cold-Rolled Toroidal Silicon Steel + Precision Aluminum Coil | Power Conversion Efficiency | ≥ 80% (Low Internal Resistance & Minimal Thermal Loss) | |
| No-Load Current | Approx. 7mA | Maximum Rated Current | 2.5A Max Load Current | |
| Safety Protection System | Thermal Cut-Off, Short-Circuit, Anti-EMC, Leakage Lock, V-0 Fireproof | Enclosure Material & Finish | High-Impact Flame-Retardant ABS+PC Engineering Plastic | |
| Cooling Method | Dual-Sided Convective Ventilation Slots | Control Interface | Heavy-Duty Rocker Switch + High-Luminance LED Power Indicator |
Compatible Devices & Applications
Compatible Japanese 100V Appliance
Recommended Continuous Load Under 400W
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Headroom Factor The SHJY-500VA is rated at 500VA apparent capacity. For prolonged continuous duty (over 30 minutes), standard electrical engineering guidelines dictate maintaining continuous appliance wattage below 400W (80% load factor). For appliances with heating elements (curling irons) or motor drives, calculate a 1.25x - 1.5x surge safety margin. | |
How to Use This Voltage Converter
Frequently Asked Questions About Voltage Converters
Can I use the Shunhong SHJY-500VA in China to power a Japanese 100V curling iron and an electric shaver at the same time?
Yes, absolutely. The Shunhong shjy-500va 220v to 100v step down transformer features dual bilateral 100V sockets on the left and right sides. A typical Japanese curling iron draws between 40W and 120W, while an electric shaver draws only 5W to 15W. Their combined load is well within the recommended 400W continuous capacity, and both sockets supply independent 100V power safely.
What is the maximum continuous load permitted on the SHJY-500VA (N5003)?
While the maximum peak apparent capacity is 500VA, for continuous duty lasting over 30 minutes, continuous load is recommended under 400W. This 20% safety margin keeps the toroidal silicon steel core operating coolly and quietly without thermal stress. The SHJY-500VA step down voltage converter 100v dual outlet is ideal for small Japanese grooming electronics under 400W.
Why do Japanese 100V appliances specifically require a 100V converter rather than a 110V/120V converter?
Japanese domestic appliances are strictly engineered for 100V AC. Operating them on 110V or 120V subjects sensitive PTC heating elements and microcomputer chips to a continuous 10% to 20% voltage overstress, accelerating aging or burning out circuit boards. The 220v to 100v step down transformer for japanese appliances provides precise, calibrated 100V output matching authentic Japanese grid specifications.
Does the SHJY-500VA make buzzing noises or disturb sleep when placed on a bedroom vanity table?
No. Thanks to its tightly wound toroidal silicon steel architecture and passive convective heat dissipation without fans, operating noise is strictly kept under 20dB (whisper-quiet). The compact silent 220v to 100v step down transformer 500va operates completely silently without buzzing or magnetic resonance.
