Adafruit
Submersible 3V DC Water Pump - Vertical Type
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A small submersible DC water pump for fountains, plant-watering systems, and other beginner projects. The pump draws water in from the side of the plastic ca...
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A small submersible DC water pump for fountains, plant-watering systems, and other beginner projects. The pump draws water in from the side of the plastic casing and pushes it out through the tubing port. It runs on 3 V and draws approximately 100 mA, making it easy to drive from a microcontroller with a transistor or motor driver such as the L293D.
The flow rate can be adjusted using PWM. The pump must remain submerged (primed) during operation — it is not self-priming, and reversing polarity does not create suction.
Key Features
- Submersible Design – Must remain underwater during operation
- Low Voltage – Operates on 3 V DC
- Low Current – Approximately 100 mA draw
- PWM Compatible – Adjust flow rate with pulse-width modulation
- Vertical Orientation – Water inlet on the side, outlet on top
Specifications
- Voltage – 3 V DC
- Current – ~100 mA
- Type – Vertical, submersible
Ideal For
- Small fountains and water features
- Automated plant watering projects
- Student and art installations
- Arduino and microcontroller projects
Package Contents
- 1× Submersible water pump with power wires
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
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Brands
Robotics & Motion
