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 accepts a wide 20V–90V DC input and delivers a stable, regulated 12V / 10A (120W) output — making it an ideal fit for car systems, railway signals, LED displays, CATV setups, monitors, and more. Made in Mainland China.

Key Features

• Wide Input Voltage Range: Accepts 20V–90V DC (compatible with 24V, 36V, 48V, 60V, and 72V nominal systems) for maximum versatility across diverse platforms.
• High Efficiency: Synchronous rectification technology delivers ≥96% conversion efficiency, with ripple noise suppressed below 50mV for ultra-clean, stable power output.
• Fast Startup: ≤2 second startup delay ensures reliable, uninterrupted power delivery from the moment you need it.
• Multi-Layer Protection: Built-in safeguards include short circuit, over-current, over-voltage, and over-temperature protection — keeping your equipment and users safe.
• IP68 Waterproof Rating: Rugged aluminum shell construction withstands harsh environments, moisture, and dust — engineered for long-lasting, dependable performance.
• Natural Cooling: Passive cooling design (no fan) means silent, maintenance-free operation.
• Compact Form Factor: At just 74 × 74 × 32 mm and approximately 280g, this converter fits neatly into tight spaces without adding bulk.

Specifications

What's in the Box?

• 1 × DC-DC Step-Down Power Converter (12V / 10A / 120W)

Ideal Applications

This versatile buck converter is perfectly suited for automotive power systems, railway signaling equipment, industrial instruments, LED strip and copper wire light drivers, CATV systems, monitors, and any application requiring efficient DC voltage step-down from a wide-range high-voltage source to a stable 12V output.

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Frequently Asked Questions

Q: What input voltage range does this DC-DC step-down converter support?

A: This buck converter supports a wide DC input voltage range of 20V to 90V, making it compatible with common nominal voltages such as 24V, 36V, 48V, 60V, and 72V systems used in automotive, industrial, and instrumentation applications.

Q: Is this step-down converter waterproof and suitable for outdoor or automotive use?

A: Yes. The converter carries an IP68 waterproof rating and is housed in a durable aluminum shell, making it well suited for harsh outdoor environments, automotive installations, and other demanding conditions where moisture or dust may be present.

Q: What protection features are built into this 120W DC converter?

A: The converter includes multiple built-in protection mechanisms: short circuit protection, over-current protection, over-voltage protection, and over-temperature protection. These safeguards help ensure the longevity of both the converter and the connected equipment.

Q: How efficient is this 12V 10A DC-DC buck converter?

A: The converter uses synchronous rectification technology to achieve greater than 95–96% conversion efficiency, with output ripple noise kept below 50mV. This means minimal energy is wasted as heat, and your connected devices receive clean, stable power.