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Low Inertia Solar Motor - 1820 RPM

This is a Low Inertia Solar DC Mini Motor. Operating voltage: 0.5V to 3V. Axle diameter: 2mm. Starting speed: 1000. Starting current: 30mA at 0.5V.

Availability: In Stock.

Code1+ 10+ 100+
(£1.32 incl VAT)
(£1.20 incl VAT)
(£1.08 incl VAT)

This is a low inertia motor that can be powered from a suitably rated solar cell. This is because these motors have a starting current of just 30mA at 0.5V.

The motor works from a voltage in the 0.5V to 3V range.

The motor has red and black 150mm flying connecting leads.


  • Low inertia ideal for using with solar power.
  • Low starting current.


  • 1 x Low Inertia Solar Motor - 1820 RPM.


  • Height: 12.8mm.
  • Diameter: 24.4mm.
  • Axle Length: 10.55mm.
  • Axle Diameter: 2mm.

Physical characteristics:

  • Height: 12.8mm.
  • Diameter: 24.4mm.
  • Axle Length: 10.55mm.
  • Axle Diameter: 2mm.
  • Weight: 22g.

Electrical characteristics:

  • Operating Voltage: 0.5V - 3V.
  • Rated Voltage: 2V.
  • Starting Voltage: 0.5V.
  • Starting Speed: 1000RPM.
  • Starting Current: 30mA.
  • Speed at Maximum Efficiency: 1820RPM.
  • Current at Maximum Efficiency: 62mA.
  • Stall Current: 170mA.
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Posted by Sanjay Nagarajan, Tuesday, 26 July 2016 on product Low Inertia Solar Motor - 1820 RPM


What would be the speeds of the kitronik-05-3v-small-1820-rpm-solar-motor at 1 V, 1.5 V, 2 V and 2.5 V?


  • Posted by Michael Lockhart on Tuesday, 26 July 2016

    Hello Sanjay, The motor has a starting speed of 1000 RPM at a 0.5V supply, and spins up to 1820RPM at 3V. However we don’t have any data to say what the motor will spin at when supplied with the voltages you have stated. The speed should however progressively increase as the voltage is increased.

Posted by Clare Brady, Tuesday, 9 June 2015 on product Low Inertia Solar Motor - 1820 RPM


Looking to make Brushbots with Yr5, need 3v buzzers or vibration motors to power a tooth brush head. Would this cause enough of a vibration to move a tooth brush head and would it sit on it? Thanks Clare


  • Posted by Michael Lockhart on Tuesday, 9 June 2015

    This motor spins at 1820 revolutions per minute, so it might not be the best motor for what you are wanting to use. We do a small 3V vibrating motor, these motors are often used for silent alert functions in mobile phones, the product code is 2541

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