The SG90 9g 180° micro servo is a compact, lightweight analog servo for small RC planes, park flyers, foam board models, micro cars and robotics projects, offering usable torque on 4.8V to 6V with a standard 3 pin JR connector and a full set of servo horns and mounting screws included.
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The SG90 9g 180° micro servo is a popular choice for lightweight RC aircraft, small RC cars and general hobby projects where space and weight are limited but you still need precise control. Running on 4.8V to 6V, it delivers usable torque and quick response in a compact 9g case, making it a good match for foam board wings, small balsa models, park flyers and simple steering or throttle setups. A standard 3 pin JR style connector on a 25cm lead means it plugs directly into most modern RC receivers and flight controllers.
With an operating angle of up to 180° and typical speeds around 0.1sec/60° at 4.8V, the SG90 handles small control surfaces like ailerons, elevators and rudders on light models, as well as pan tilt brackets and simple robot joints. Plastic gears keep the weight down while still providing enough strength for small linkages when installed and driven correctly. The servo case dimensions of roughly 23mm x 12.2mm x 29mm allow it to fit neatly into tight fuselages and servo bays sized for common 9g form factor servos.
For RC builders the SG90 is a cost effective way to equip multiple small models or to keep a few spare servos in the flight box for field repairs. Each servo is supplied with a set of arms, mounting screws and a horn screw so you can bolt it straight into your model and hook up existing pushrods or control hardware without hunting for extra fittings.
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