Mini 5V DC Water Pump Submersible – Compact Pump for DIY Projects

This mini 5V DC submersible water pump is a handy little pump for DIY electronics, Arduino Uno and hobby projects. Just drop it into water, connect the two wires to a 5V supply, and it pumps water through its 5mm outlet. It is ideal for small fountains, plant watering systems, aquariums, and school or college projects across Pakistan.

Specifications

• Operating voltage: 5V DC
• Flow rate: 80–120 L/H (approx.)
• Max lift height: 0.4–1.2 metre (approx.)
• Compact size: 45 x 24 mm
• Outlet diameter: 5mm
• Submersible design with simple two-wire connections

How to Use

• Submerge the pump in water before powering it on. Never run it dry.
• Connect the red wire to 5V and the black wire to GND. Power it from a 5V adapter, or switch it with a relay module for Arduino control.
• Arduino note: do not drive the pump directly from an Arduino pin – switch it through a relay module or a transistor instead.

Applications

• Aquariums and fish tanks
• Fountain DIY projects
• Plant watering systems
• Water circulation projects

Frequently Asked Questions

1. Can it run directly from an Arduino?

No. An Arduino pin cannot supply enough current for this pump. Always drive it through a relay module or a transistor.

2. Is it submersible?

Yes. This is a submersible pump – always place it fully in water before switching it on, and never run it dry.

3. How do I power it?

Connect the red wire to 5V and the black wire to GND, using a 5V adapter or a relay module for switching.

4. What is the flow rate?

The approximate flow rate is 80–120 litres per hour, depending on the lift height.

5. Can it pump other liquids?

No. The pump is designed for water only. Do not use it with other liquids.

6. What is the max lift height?

The maximum lift height is approximately 0.4–1.2 metre, depending on your setup.