Usb Type Waterproof IP67 12/24V to 5v 5A 25W Converter
Sealed flame-retardant plastic chassis designed for terminal instrumentation and mobile telemetry charging.
- Topology: Buck Step-Down
- Efficiency: Up to 93%
- Ingress: Fully IP67 Potted
Direct Factory Catalog
High-Performance DC-DC Converters & Power Inverters
Engineered for high current density, superior thermal conductivity, and long MTBF under harsh coastal tropical environments.
YUCOO Micro IP67 24V to 12V 3A 36W Converter
Ultra-compact micro synchronous rectification unit for automotive sensors, automation PLCs, and compact modules.
- Input/Output: 24V DC to 12V DC
- Protection: OVP, OCP, OTP
- Casing: Epoxy Filled Shockproof
Pure Sine Wave Inverter 300W DC to AC 220V
Wide-input high-frequency pure sine converter for precision lab instruments, telematics, and field measurement kits.
- DC Range: 12V / 24V / 48V / 72V
- THD: < 3% Linear Load
- Cooling: Smart Thermal Fan
Buck & Boost 8-40V to 13.8V 5A DC-DC Converter
Wide dynamic input stabilizer outputting stable communication bus voltage despite engine cranking or battery drop.
- Input Voltage: 8V – 40V Ultra-Wide
- Nominal Vout: 13.8V Stabilized
- Enclosure: Die-Cast Aluminum
YUCOO Single Phase Inverter 3000W DC to AC
Heavy-duty power conversion platform handling aggressive startup surges for motorized industrial marine and mobile rigs.
- Continuous: 3000W Pure Sine
- Surge Peak: 6000W Instantaneous
- Interface: Isolated Terminal Block
Isolated DC to DC 48V-96V to 12V 5A Converter
Complete galvanic barrier isolation protection for sensitive telecom microprocessors and rail electrical subsystems.
- Input Envelope: 48V – 96V Wide Range
- Isolation: 1500VDC Dielectric
- Topology: Forward/Flyback Reg
High Efficiency 1440W 36V to 48V 30A Boost Converter
High-amperage non-isolated synchronous boost converter engineered for golf cart fleets, AGVs, and DC microgrids.
- Efficiency: > 95.5% at Rated Load
- Output: 48V DC @ 30A Cont.
- Heat Sinking: Integrated Fin Shell
12V/24V to 13.8V 10A Buck-Boost Stabilizer
Industrial solid-state automatic buck-boost architecture maintaining continuous precision RF power delivery.
- Rated Power: 138 Watts Sustained
- Ripple & Noise: < 50mVp-p Low Noise
- Sealing: Silicone Gel Injection
Engineering Whitepaper • Regional Integration
Deployment Contexts Across Da Nang's Modernizing Economy
Da Nang represents Central Vietnam's high-tech epicentre and commercial port hub. Non-isolated DC-DC converters act as indispensable links across the municipality's high-reliability electrical architectures.
Da Nang Hi-Tech Park (DHTP) Cleanrooms
Electronics packaging, micro-assembly, and semiconductor testing lines inside DHTP require compact non-isolated point-of-load (POL) buck regulators. Our modules provide step-down conversion from distributed 24V/48V bus architectures to 5V, 3.3V, and 12V rails with fast transient response, eliminating parasitic ground bounce and keeping ripple under 30mV.
Tien Sa Port & Marine Automation
Marine logistics equipment, tug auxiliary systems, and automated guided vehicles (AGVs) operating along the Son Tra peninsula contend with ambient humidity exceeding 85% and severe salt fog. IP67 aluminum potted converters take erratic 24V or 36V engine-alternator outputs and step them down reliably to supply sensors, marine radar, and vessel telemetry.
Central Highlands Renewable Grid Tie-Ins
As the central operations base for regional photovoltaic and wind farms across Quang Nam and Da Nang, our high-voltage non-isolated boost and buck-boost converters step variable string battery banks up to auxiliary communications systems, ensuring off-grid telecom antennas operate unhindered by battery state-of-charge fluctuations.
Topological Selection Matrix
Isolated vs. Non-Isolated Converters: Strategic Trade-Off Analysis
In power electronics procurement, selecting non-isolated over isolated topology delivers distinct thermal and volumetric advantages when physical galvanic boundaries are unnecessary.
| Evaluation Parameter | Non-Isolated DC-DC Converters | Galvanically Isolated Converters | Da Nang Procurement Recommendation |
|---|---|---|---|
| Typical Conversion Efficiency | 94% – 97.5% (Synchronous Buck/Boost) | 84% – 89% (Transformer Core Losses) | Prioritize Non-Isolated for battery-backed and energy-conscious factory runs. |
| Volumetric Power Density | Extremely High (Inductor + MOSFETs only) | Moderate to Low (High-frequency transformer bulk) | Select Non-Isolated for tight automated vehicle and robotics chassis. |
| Thermal Footprint | Minimal heat dissipation; compact heatsinks | Requires significant heat dissipation margins | Non-isolated reduces thermal derating risks in coastal Da Nang's hot summers. |
| Ground Loop Architecture | Shared Negative/Ground Rail | Fully Floating Independent Grounding | Use isolated strictly when bridging high voltage differentials (>100V) or noisy AC grounds. |
| Procurement & BOM Cost | Lower unit cost, minimal winding components | Higher cost due to certified safety transformers | Non-isolated delivers superior CapEx ROI for volume OEM integrations. |
Enterprise Manufacturing Strength
Varnix Technology: ISO 9001:2015 Power Manufacturing Since 2003
Originating as a precision power engineering factory, Varnix operates 1,229 m² of audited production floor featuring 10+ dedicated automated surface mount, hand soldering, encapsulation, and functional testing lines verified onsite by SGS.
Unlike trading entities, our manufacturing infrastructure oversees component qualification down to active switching semiconductors and high-permeability ferrite cores. Every unit bound for ASEAN ports undergoes 100% full-load burn-in (aging) cycles inside custom thermal test chambers to eradicate infant mortality failure modes.
- 100% Elevated Temperature Full-Load Burn-In Qualification
- CE, RoHS, and FCC Fully Verified Compliance Documentation
- Onsite CNC Machining and Custom Aluminum Enclosure Extrusion
Procurement Intelligence
Frequently Asked Questions • Direct Importing to Da Nang
Essential regulatory, technical, and logistical clarifications for engineering managers and sourcing procurement agents in Central Vietnam.
How do your non-isolated DC-DC converters endure Da Nang's high humidity and coastal salt-mist corrosion?
Our modules feature solid epoxy resin or polyurethane potting under vacuum injection, delivering full IP67 ingress certification. This encapsulation completely insulates surface-mount devices (SMDs), planar inductors, and trace routing from saline atmospheric deposition along coastal areas like Da Nang's Lien Chieu and Son Tra districts, eliminating short-circuit formation and electrochemical migration.
What are the import procedures, HS code classifications, and typical freight lead times to Da Nang?
DC-DC switching converters typically clear Vietnam Customs under HS Code 8504.40 (Static Converters). We routinely export under FOB, CIF (Tien Sa Port / Da Nang International Airport), and door-to-door DDP arrangements. Ocean freight transit from our factory facilities to Da Nang port generally requires 5 to 8 days, while express air couriers deliver within 48 to 72 hours for urgent production line maintenance.
Can your factory provide custom input/output voltages and tailored metal housings for OEM integration?
Yes. We offer end-to-end design-based and sample-based OEM/ODM customizations. We regularly formulate tailored multi-output rails (e.g., custom 18V, 28V, or 56V rails), programmable output current cutoffs, customized wire harness terminations with Deutsch or Anderson connectors, and custom CNC laser-etched aluminum branding.
Why do your engineers advocate synchronous rectification for factory installations?
Conventional buck circuits employ Schottky diodes, which drop 0.4V to 0.6V in forward conduction. In high-amperage systems (such as 30A or 60A loads), this diode generates massive continuous thermal waste (12W–36W). Synchronous rectification substitutes these diodes with ultra-low RDS(on) MOSFETs, pushing continuous operational efficiency past 95%, dramatically shrinking casing temperature and prolonging lifespan.
What minimum order quantities (MOQ) and warranty assurances are supported?
Catalog inventory items feature an accessible MOQ of just 1 to 10 units to support validation testing, prototyping, and small-batch pilot lines. Custom OEM chassis, unique voltages, and private label programs are quoted transparently based on project scale. All units carry comprehensive factory warranties backed by contract-bound failure remediation and 24/7 direct-engineer technical response.
Deploy Verified Power Conversion Hardware in Da Nang
Submit your electrical parameter limits, expected duty cycle, and volume requirements. Our senior application engineers respond within 4 hours with comprehensive datasheets and competitive direct-factory quotations.