Heavy-Duty DC Step-Down Converters for Global Integrators
Varnix Technology Co., Ltd. manufactures industrial synchronous buck DC-DC converters engineered to withstand harsh vehicular, telecom, and renewable energy environments. Featuring die-cast aluminum waterproof housings (IP67/IP68 rated), comprehensive electronic protection (over-voltage, over-current, over-temperature, and short-circuit), and conversion efficiencies exceeding 94%, our step-down modules are deployed by fleet operators, commercial vehicle builders, and systems integrators across North America and Europe.
All Step-Down (765) 24V to 12V 48V to 12V 48V to 24V High Power (>1000W)
Showing 8 Selected Industrial Models FCCCERoHS
24V to 12V 165A 1980W Heavy-Duty DC Converter
- Input Voltage18–36 VDC
- Output Spec12 VDC / 165A Max
- EfficiencyUp to 96%
- HousingExtruded Aluminum
$125.00 - $260.00 MOQ: 5 pcs
FCCCERoHS
Wide-Input 48V/60V/72V to 12V 20A Buck Converter
- Input Voltage30–90 VDC Wide
- Output Spec12 VDC / 20A (240W)
- ApplicationGolf Cart / EV / Forklift
- ProtectionIP68 Waterproof
$11.70 - $14.20 MOQ: 5 pcs
FCCCERoHS
Vehicle Power Supply 48V DC to 12V DC 10A Module
- Input Voltage36–60 VDC
- Output Spec12 VDC / 10A (120W)
- CoolingNatural Convection
- Ripple< 50mVp-p
$4.50 - $6.90 MOQ: 10 pcs
FCCCERoHS
Compact 48V to 12V 3A 36W Step Down Converter
- Input Voltage30–60 VDC
- Output Spec12 VDC / 3A (36W)
- EnclosureEpoxy Sealed Plastic
- SafetyShort Circuit Protected
$5.60 - $7.00 MOQ: 5 pcs
FCCCERoHS
Truck & Bus 48V to 12V 10A 120W Voltage Reducer
- Input Voltage35–60 VDC
- Output Spec12 VDC / 10A (120W)
- Use CaseTruck Audio / GPS / Radio
- DurabilityAnti-Vibration Design
$5.70 - $7.20 MOQ: 2 pcs
FCCCERoHS
High Frequency 48V to 24V 15A 360W DC Regulator
- Input Voltage38–60 VDC
- Output Spec24 VDC / 15A (360W)
- TopologySynchronous Buck
- Efficiency95% Peak
$9.00 - $13.60 MOQ: 5 pcs
FCCCERoHS
24V to 12V 15A 180W Golf Cart Voltage Reducer
- Input Voltage18–35 VDC
- Output Spec12 VDC / 15A (180W)
- CaseDie-cast Waterproof Alum
- WarrantyFull Factory Warranty
$6.50 - $7.80 MOQ: 5 pcs
FCCCERoHS
12V/24V to 5V 3A Micro USB Step-Down Car Charger
- Input Voltage8–35 VDC
- Output Spec5 VDC / 3A (15W)
- ConnectorMicro USB / Type-C Option
- InstallationDash Cam / GPS Hardwire
$4.10 - $5.10 MOQ: 5 pcs
Technical Parameter Comparison Matrix
| Model Series | Input Range (VDC) | Nominal Output | Max Current / Power | Peak Efficiency | Ingress Protection |
| VNB-2412-165 | 18 – 36 V | 12.0 VDC | 165 A / 1980 W | 96.2% | IP20 (Chassis Forced Air) |
| VNB-W7212-20 | 30 – 90 V | 12.2 VDC | 20 A / 244 W | 94.5% | IP68 Waterproof Potted |
| VNB-4812-10 | 36 – 60 V | 12.0 VDC | 10 A / 120 W | 93.8% | IP67 Aluminum Alloy |
| VNB-4824-15 | 38 – 60 V | 24.0 VDC | 15 A / 360 W | 95.1% | IP67 Sealed Housing |
| VNB-2412-15 | 18 – 35 V | 12.0 VDC | 15 A / 180 W | 94.0% | IP68 Waterproof Potted |
| VNB-122405-3U | 8 – 35 V | 5.0 VDC | 3 A / 15 W | 92.5% | Flame-retardant ABS |
End-to-End Manufacturing & Testing Workstations
Every buck converter leaving our 1,229 m² facility undergoes rigorous raw material verification, wave soldering, function calibration, high-temperature aging, and oscilloscope waveform inspection.
Digital Multimeter Calibration Custom Voltage & OEM Requirements?
Varnix Technology Co., Ltd. supports full customization for input voltages from 8V up to 120V, custom current limits, potting materials, terminal connectors, and private label silkscreen printing.
