Expert SL300 - Micro Servo

Specifications

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

Last Updated:	2025-08-06
Modulation:	(add)
Torque:	4.8V: 30.50 oz-in (2.20 kg-cm)
Speed:	4.8V: 0.21 sec/60°
Weight:	0.60 oz (17.0 g)
Dimensions:	Length:1.17 in (29.7 mm) Width:0.50 in (12.7 mm) Height:1.12 in (28.4 mm)
Motor Type:	(add)
Gear Type:	(add)
Rotation/Support:	(add)
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Expert SL300 is a high-quality analog servo in the popular 9-gram sub-micro class, upholding the Expert brand's reputation for precision and reliability in a compact package. This servo is aimed at the discerning builder of high-quality park flyers, small scale models, and electric gliders who wants a superior-performing component. The SL300 is known for its exceptionally smooth gear train and accurate centering, which provides a more refined and predictable flight experience than is possible with more basic 9g servos. It is a premium choice for hobbyists who value the quality of their control system.
The essence of the SL300 is its high-fidelity performance in a small size. It provides a very direct and connected feel, allowing pilots to fly with a greater degree of grace and precision. It is the servo of choice for experienced modelers who are building an aircraft that they are truly passionate about and want to equip it with the best possible components. It represents a commitment to quality that is tangible in the air.
In the world of high-precision micro-robotics, the Expert SL300 is an outstanding actuator. It is ideal for building a high-quality, jitter-free camera pan-and-tilt mechanism, or for the joints of a small robotic manipulator where accurate and repeatable motion is critical. For any compact robotics project where quality, smoothness, and reliability are the top priorities, the SL300 offers a clear advantage."