DC 3V 5V Micro Submersible Motor Pump
Silent Portable Submersible Water Pump for Mini Projects
This compact submersible water pump is designed for low-voltage DIY applications, ideal for fish tanks, tabletop fountains, garden watering, and hydroponic systems [citation:2][citation:4][citation:10].
Brushless Motor Design - Low noise operation for quiet environments
Compact Size - Fits small spaces for easy installation and concealment
Rated Voltage: DC 3V or 4.5V, ideal for battery, USB power, or solar panels [citation:2][citation:9]
Input Range: Can accept 3V to 5V DC power supply [citation:6]
Operating Current: 0.1A to 0.25A (150-250mA typical) [citation:2][citation:9]
Rated Power: 0.4W to 1.5W depending on voltage [citation:10]
Max Lift: Up to 110cm (43 inches) [citation:7]
Flow Rate: 1.2 to 1.6 L/min [citation:6]
Key Features
Silent Operation - Brushless motor design keeps noise levels low [citation:2][citation:9]
Energy Efficient - Low power consumption for battery/solar applications
IP68 Waterproof - Fully submersible with epoxy resin protection [citation:2][citation:1]
Magnetic Drive - Brushless design for longer lifespan [citation:2]
Compact Form Factor - 45mm x 30mm x 25mm, weight ~30g [citation:6]
= Applications =
- Small aquariums and fish tanks [citation:2][citation:4]
- Tabletop fountains and water features
- Hydroponic systems [citation:2][citation:10]
- Solar-powered water circulation [citation:7]
- DIY experiments and prototypes [citation:2]
Quiet and Compact - Perfect for small water features
USB Compatible - Works with power banks and phone chargers
√ Includes silicone/vinyl tubing for easy installation [citation:3][citation:6]
√ Easy to hide in water due to mini size [citation:4]
√ Cost-effective for hobby and educational projects
Important Usage Notes
The pump must be fully submerged during operation; running dry will cause overheating and damage [citation:2][citation:8].
Keep the pump in clean water; debris or particles larger than 0.35mm can cause blockages [citation:1].
Check the inlet regularly for clogs to maintain flow [citation:2].
Connect red wire to positive (+) and black wire to negative (-) on a DC supply. Do not connect directly to AC mains [citation:2][citation:6].
Only use with DC power (3V5V) not for AC mains
Do not run pump dry or continuously for hours, as it is intended for experimental/short-term use [citation:2][citation:4]
Keep away from acidic/alkaline liquids which may damage the pump [citation:1]
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