Varnix AC to DC Converter Manufacturing Workshop
Engineered For Reliability

Industrial Grade AC to DC Step-Down Converters

Varnix Technology Co., Ltd. delivers high-efficiency AC to DC step-down buck regulators and power supplies designed for automotive, security surveillance, LED arrays, telecommunications, and industrial automation. All units feature comprehensive protection against over-voltage, over-current, over-temperature, and short circuits.

IP67 Waterproof AC 24V to DC 5V 3A Buck Converter Voltage Regulator

AC 24V to DC 5V 3A Buck Voltage Regulator

  • Input Voltage10V–28V AC
  • Output Rating5V DC / 3A (15W)
  • ProtectionIP67 / Over-current
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High Efficiency 10-26VAC to 5V 3A 5A AC DC Buck Step Down Voltage Power Converter

10–26V AC to 5V 3A/5A Step-Down Module

  • Input Voltage10V–26V AC
  • Output Rating5V DC / 5A (25W)
  • Efficiency>92% Conversion
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Compact Housing Step Down Buck 12V 24V AC to 5V DC Converter 25W

12V/24V AC to 5V DC 1A–5A Buck Converter

  • Input Range12V / 24V AC
  • Output PowerUp to 25W
  • CoolingNatural Convection
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Aluminum Case Waterproof Converter 24Vac to 12Vdc 4A 5A Buck Step Down

Waterproof 24V AC to 12V DC 4A/5A Converter

  • Input Voltage17V–26V AC
  • Output Rating12V DC / 5A (60W)
  • HousingDie-cast Aluminum
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High Voltage AC 36V to DC 12V DC 15V 4A Buck Converter Module

AC 36V to DC 12V/15V 4A Step-Down Module

  • Input Voltage28V–45V AC
  • Output Rating12V/15V DC / 4A
  • PottingEpoxy Sealed IP68
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USB Output USB Type Waterproof IP67 12V 24V to 5V 5A AC DC Converter

USB Port Waterproof 12/24V AC to 5V DC 5A

  • Input Range10V–28V AC
  • Output PortStandard USB Type-A
  • RatingIP67 Flame Retardant
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Standard Model Selection Reference

Model Series Input Voltage Range Output Voltage Rated Current Efficiency Ingress Protection
V-AC24D05-3A 10V – 28V AC 5.0V DC 3.0A ≥93% IP67 Waterproof
V-AC24D05-5A 10V – 28V AC 5.0V DC 5.0A ≥92% IP67 Waterproof
V-AC24D12-3A 17V – 26V AC 12.0V DC 3.0A ≥95% IP68 Waterproof
V-AC24D12-5A 17V – 26V AC 12.0V DC 5.0A ≥94% Die-cast Aluminum
V-AC36D12-4A 28V – 45V AC 12.0V DC 4.0A ≥92% IP68 Waterproof
V-AC24D24-2A 20V – 30V AC 24.0V DC 2.0A ≥95% Aluminum Enclosure
Quality Inspection & Manufacturing Workflow

Standardized In-House Production Line

Varnix Technology Co., Ltd. enforces rigorous quality standards at every milestone of converter production. Every stage from raw material verification to aging burn-in and functional validation is audited in-house to deliver zero-defect reliability to our worldwide clients.

Raw Material Inspection
Raw Material Storage

Component-level verification against strict BOM standards before entering lines.

Welding Process 1
PCB Welding Line 1

High-precision soldering and component mounting for high-voltage circuits.

Welding Process 2
PCB Welding Line 2

Precision wave and manual point soldering guaranteeing electrical integrity.

Assembly 1
Unit Assembly Line 1

Module packaging and thermal compound placement on die-cast casings.

Assembly 2
Unit Assembly Line 2

Internal wiring, terminal assembly, and waterproof seal integration.

Assembly 3
Final Enclosure Assembly

Final mechanical assembly and potting sealing for IP67/IP68 compliance.

Function Test Station
Electrical Function Test

Full-spectrum input/output voltage and overload regulation test.

Function Check Station
Dynamic Function Check

Secondary verification under step-load conditions to inspect response curve.

Aging Test Rack
Full-Load Burn-in Rack

100% prolonged high-temperature full-load aging to eliminate early failure.

Aging Test Bay
Continuous Aging Chamber

Environmental stress screening monitoring thermal equilibrium and stability.

Oscilloscope Analysis
Oscilloscope Waveform QC

Precise ripple, switching transient, and noise measurement.

Multimeter Calibration
Precision Measurement

High-accuracy digital metering calibrating output tolerance within ±1%.

Industrial Oven
Thermal Curing Oven

Specialized potting compound baking oven for maximum waterproof integrity.

Drilling Machine
Precision Tooling & Drilling

Custom enclosure machining for specific mounting holes and connector specs.

Final Quality Inspection
Final OQC Inspection

Aesthetic, wiring, polarity, label verification, and barcode logging.

Packing Station
Export Protective Packing

Shock-absorbent cartons, drop-tested shipping crates, and moisture sealing.

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Looking for an Engineered AC-DC Power Solution?

Contact our engineering specialists for customized voltages, specialized potting materials, OEM branding, or full technical datasheets.

[email protected]
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