KO Propo PS-947 FET - Digital Mini Power Servo

Specifications

Source: Most data comes from the manufacturer but some data is sourced from our loyal community.

Last Updated:	2025-08-11
Modulation:	Digital
Torque:	6.0V: 38.80 oz-in (2.79 kg-cm)
Speed:	6.0V: 0.09 sec/60°
Weight:	0.95 oz (26.9 g)
Dimensions:	Length:1.28 in (32.5 mm) Width:0.59 in (15.0 mm) Height:1.42 in (36.1 mm)
Motor Type:	Coreless
Gear Type:	Metal
Rotation/Support:	Dual Bearings
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued KO Propo PS-947 FET is a high-performance digital micro servo that brings the power of a Field-Effect Transistor (FET) amplifier to a compact package. This servo is engineered for the most demanding micro-class applications where both power and a crisp, immediate response are required. It is an outstanding choice for the cyclic controls on a 250-class 3D helicopter, where its powerful holding torque provides a very authoritative and locked-in feel. It is also a fantastic steering servo for 1/18 scale race cars, where its FET-driven power can easily handle the steering loads.
The character of the PS-947 FET is its immense power for its size. The FET amplifier allows it to deliver its torque with a potency and speed that is a clear step above standard micro servos. This gives the pilot or driver a huge boost in confidence, knowing their control system can handle the most aggressive maneuvers without feeling overwhelmed. It is a professional-grade micro servo for the serious enthusiast.
In the world of advanced micro-robotics, the KO Propo PS-947 FET is a superb actuator. Its high power and robust electronics make it ideal for the joints of a small but powerful and dynamic walking robot, or for a micro-robotic gripper that needs to apply a significant clamping force. It offers a professional level of power for the most ambitious compact robotics projects.