DC 3V–6V Mini Submersible Water Pump — Horizontal/Vertical, Fountain, Arduino

DC 3V–6V Mini Submersible Water Pump Horizontal/Vertical, Fountain, Arduino

$5.56 USD

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DC 3V–6V Mini Submersible Water Pump — Horizontal / Vertical, Ultra-Quiet, for Arduino

This mini DC submersible water pump operates from 3V to 6V — directly compatible with Arduino 5V power, USB power banks, and 4×AA battery packs. The compact brushless motor design supports both horizontal and vertical installation inside a water reservoir, with a waterproof motor housing for full submersion. Ultra-quiet operation makes it ideal for desktop fountains, aquarium circulation, and hydroponics systems.

Key Specifications

Parameter	Value
Supply Voltage	DC 3V – 6V (5V recommended)
Current (at 5V)	100–200mA typical
Flow Rate (at 5V)	~80–120 L/h
Max Head (at 5V)	~40–60cm
Installation	Horizontal or vertical (fully submersible)
Outlet Diameter	7–8mm OD tube fitting
Motor Type	Brushless DC (waterproof)
Noise Level	Ultra-quiet

Arduino Control Wiring

Do not drive directly from Arduino GPIO (max 40mA per pin)
Use NPN transistor (S8050, 2N2222) or N-channel MOSFET (2N7000, IRF520) as switch
GPIO → Base/Gate → Transistor/MOSFET → Pump → 5V
Add flyback diode across pump terminals for motor spike protection

Why Choose This Mini Pump?

✅ 3–6V operating range — powered by USB, 4×AA, or 5V Arduino supply
✅ Fully submersible — waterproof motor housing for in-tank installation
✅ Horizontal / vertical mount — flexible installation in any reservoir orientation
✅ Ultra-quiet brushless motor — suitable for desktop and bedroom use
✅ 7–8mm outlet — compatible with standard aquarium and irrigation tubing