DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input
DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input
DC-DC Step-Down Converter – 12V Output, 10A, 120W | 20–90V Wide Input Range
Power your automotive, instrumentation, and industrial systems with confidence. This compact DC-DC step-down (buck) converter takes a wide 20V–90V DC input and delivers a stable, regulated 12V / 10A / 120W output — making it ideal for vehicles, LED displays, railway signals, CATV systems, monitors, and more.
Built with a rugged aluminum shell and an IP68 waterproof rating, this converter is engineered for reliability in demanding environments, from engine bays to outdoor enclosures.
Key Features
- Wide Input Voltage Range: Accepts 20V–90V DC input (nominal voltages: 24V / 36V / 48V / 60V / 72V) and outputs a rock-steady 12V DC at up to 10A (120W).
- High Efficiency: Synchronous rectification technology delivers ≥95% conversion efficiency, minimising energy waste and heat generation.
- Clean, Low-Noise Output: Ripple noise suppressed to below 50mV for sensitive electronics and instrumentation.
- Fast Startup: ≤2-second startup delay for reliable, uninterrupted power delivery.
- Multi-Layer Protection: Built-in short-circuit, over-current, over-voltage, and over-temperature protection safeguards both your equipment and the converter itself.
- IP68 Waterproof & Rugged Build: Aluminum alloy casing handles temperatures from -25°C to 80°C with natural cooling — no fan required.
- Compact & Lightweight: Only 74 × 74 × 32 mm and approximately 280g, fitting easily into tight installation spaces.
Full Specifications
| Input Voltage Range | 20V–90V DC |
| Nominal Input Voltages | 24V / 36V / 48V / 60V / 72V DC |
| Output Voltage | 12V DC |
| Output Current | 10A |
| Output Power | 120W |
| Conversion Efficiency | ≥95% |
| Ripple Noise | <50mV |
| No-Load Regulation | ±1% |
| Load Regulation | ±5% |
| Startup Delay | ≤2 seconds |
| Operating Temperature | -25°C to 80°C |
| Waterproof Rating | IP68 |
| Casing Material | Aluminum Alloy |
| Colour | Silver |
| Dimensions | 74 × 74 × 32 mm (L × W × H) |
| Weight | Approx. 280g |
| Cable Length | 13–14 cm |
| Cooling Method | Natural Cooling (fanless) |
| Protection | Short Circuit, Over-Current, Over-Voltage, Over-Temperature |
Common Applications
- Automotive & vehicle electrical systems
- Electric bikes, scooters, and golf carts
- Railway signalling and instrumentation
- LED strip lights and copper wire LED displays
- CATV and broadcast equipment
- Industrial monitors and control panels
- Solar and alternative energy systems
What's in the Box
- 1 × DC-DC Step-Down Power Converter (12V / 10A / 120W)
Made in Mainland China.
Looking for more tools and electronics for your projects? Check out our Air Compressor Pressure Gauge – DIY Tool or explore our Electromagnetic Induction Tester – Circuit Fault Detector for your workshop needs.
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What input voltage range does this DC-DC step-down converter support?
A: This converter supports a wide DC input range of 20V to 90V, covering common nominal voltages of 24V, 36V, 48V, 60V, and 72V. This makes it highly versatile for automotive, industrial, and alternative energy applications.
Q: Is this converter suitable for use in a vehicle or outdoor installation?
A: Yes. The converter carries an IP68 waterproof rating and operates reliably across a temperature range of -25°C to 80°C, making it well-suited for automotive, marine, outdoor, and other harsh-environment installations. Its fanless natural cooling design also means silent, maintenance-free operation.
Q: What protections are built into this step-down converter?
A: The unit features comprehensive built-in protection, including short-circuit protection, over-current protection, over-voltage protection, and over-temperature protection. These safeguards help protect both the converter and your connected equipment from unexpected electrical faults.
Q: What is the output ripple noise level, and is it safe for sensitive electronics?
A: The output ripple noise is suppressed to below 50mV, which is suitable for powering sensitive electronics such as instrumentation, monitors, CATV equipment, and LED lighting systems that require a clean, stable power supply.