The DE1220-3 miniature constant-current motor has 12mm diameters and 20mm long diameters. It can be used in micro-sumo robots or in small executive systems. The motor has a diameter of 1mm. It is powered by 3V. PrädkoĂ?Ĺ?Ä?Ĺ? 5200 [rpm].The DE1220-3 miniature constant-current motor has 12mm diameters and 20mm long diameters. It can be used in micro-sumo robots or in small executive systems. The motor has a diameter of 1mm. It is powered by 3V. PrädkoĂ?Ĺ?Ä?Ĺ? 5200 [rpm].