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DC40-135 to DC12V 10A 120W Isolated Dc-dc Converter Aluminum Waterproof
Product Description
Product Description
High Efficiency & Fast Response
High inverter frequency, fast dynamic response, compact size, lightweight build, low energy consumption, high transfer efficiency, material saving, and energy saving.
Superior Electrical Isolation
Engineered with galvanic isolation providing substantially higher circuit stability, system safety, and overall reliability compared to non-isolated units.
Wide Fluctuation Tolerance
Broad resistance range against input voltage fluctuations, strong driving capability, and high control precision under complex operational demands.
Short Circuit Protection: When output is short-circuited, the converter terminates operation and automatically resumes normal performance once the fault condition is cleared.
Over Current Protection: Automatically shuts down when the output load current exceeds the rated threshold limit.
Over-Temperature Protection: Enters automatic thermal protection status upon reaching preset critical temperatures, smoothly resuming operation after thermal dissipation.
Converter Parameter
| Product Name | DC DC Converter |
| Model | YK-DD40-135S1210 |
| Input Voltage Range | DC 40-135V (DC 48/60/72/84/96V compatible) |
| Output Voltage | 12Vdc |
| Output Current | 10A |
| Output Power | 120W |
| Input Frequency | 30-120KHz |
| Continuous Long-term Load | 100W |
| Transfer Efficiency | 85% |
| Voltage Stability | <1.5% |
| Load Stability | <1.5% |
| Insulation Resistance |
>50MΩ between input and output >50MΩ between input and housing >50MΩ between output and case |
| Weight | 455g |
| Dimension |
150 × 86 × 46 mm 178 × 86 × 46 mm (with installation holes) |
| Application | Motor, audio, navigation, monitoring, LED display, air conditioning, electric fans, solar energy, photovoltaic energy, DVD lights, motors, pumps, and industrial equipment. |
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Frequently Asked Questions
Q1
What input voltage ranges are supported by this converter?
The converter is designed with an ultra-wide input voltage range of DC 40V to 135V, making it fully compatible with DC 48V, 60V, 72V, 84V, and 96V battery systems and DC grids.
Q2
What are the advantages of electrical isolation in this DC-DC converter?
Isolated architecture provides complete galvanic isolation between the input and output stages (>50MΩ insulation resistance). This design eliminates ground loops, mitigates electric noise, and protects downstream 12V devices from high-voltage surges.
Q3
Can the unit operate at 120W continuously?
The maximum rated peak capacity is 120W (12V 10A). For long-term continuous 24/7 duty cycles, keeping load consumption within 100W is recommended to maximize system reliability and thermal life.
Q4
How does the short-circuit protection mechanism operate?
When an external short circuit is detected across the 12V output terminals, the converter instantly triggers auto-shutdown. After the short-circuit fault is removed, it automatically resumes normal operation without requiring manual intervention.
Q5
What thermal protection safeguards are implemented?
The converter includes integrated over-temperature monitoring. If internal operating temperatures reach preset safety limits, the converter self-protects and automatically reboots once temperatures return to a safe operational window.
Q6
What equipment can be powered by this converter?
It is broadly utilized across electric vehicles, industrial equipment, monitoring systems, LED displays, vehicle audio and navigation, DC motors, water pumps, and solar/photovoltaic balance-of-system setups requiring clean, regulated 12V DC power.
