FEETECH Mini Servo FT1117M
The FT1117 from FEETECH is a miniature-sized servo with the same output spline as standard servos, making it compatible with standard-sized servo horns, and the gear train is made primarily of metal gears. Servo horns and associated hardware are included.
Key specs at 6 V: 0.11 sec/60°, 50 oz-in (3.5 kg-cm), 20 g.
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The FT1117M is a miniature-sized servo from FEETECH with the same output spline as standard servos, making it compatible with standard-size servo horns. The pinion gear is plastic, but the rest of the gear train consists of all metal gears, allowing this servo to deliver the kind of speed and torque typically associated with larger servos.
The FT1117M works with standard RC servo pulses, offering position control over a 120° operating angle for standard servo pulses between 900 µs to 2100 µs. As with most servos, the pulse range can be expanded to achieve an expanded operating angle (FEETECH does not specify this beyond listing a physical limit angle of 200°). The servo has a 7″ (18 cm) cable that is terminated with a standard JR-style connector, which is Futaba-compatible, and it includes additional servo horns and mounting hardware.
You can find more information about this servo in its datasheet (125k pdf).
Note that, as with most hobby servos, stalling or back-driving this servo can damage it.
Comparison to the Power HD 1711MG mini servo
This servo is a lower-cost alternative to the 1711MG from Power HD, which has nearly identical dimensions and performance. The two servos should be generally interchangeable for most applications. The picture below shows both the FT1117M and the 1711MG side by side: