KST X12-708

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-09

Identity
Brand
Product Number	KST-X12-708
Category	Hobby
Performance
Torque	8.4V 129.08 oz-in 7.4V 119.37 oz-in 6.0V 87.45 oz-in
Speed	8.4V 0.07 sec/60° 7.4V 0.08 sec/60° 6.0V 0.09 sec/60°
Physical
Weight	0.75 ozBottom 10%
Dimensions	L 0.906 in W 0.472 in H 1.083 in
Case Material	Aluminum
Drivetrain
Motor Type	Brushless
Gears	Steel
Rotation Mode	Positional
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Rotational Range	100°
Pulse Cycle	3.003 ms
Pulse Width	900-2100 µs
Neutral Position	1520 µs
Dead Band	1 µs
Refresh Rate	333 Hz
Control System	PWM
Programmable	Yes
Electrical & Environment
Operating Voltage	4.8–8.4 V
Temperature	-20–65 °C
Connectivity
Connector	JR (Universal) estimate
Wire Length	210 mm

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*Based on known specs.

Class Comparison

Weight

Bottom 10%

Lighter than 5% of 620 Digital Micro servos

Performance Analysis

Shaft Power	1.80–3.41 W
Power Density	7.362 W/in³ More power-dense than 89% of 590 Digital Micro servos
Torque Density	4.1056 oz-in/g
Torque-to-Volume Ratio	188.82 oz-in/in³
Speed-to-Weight	0.52165 (1/sec·g)
Speed-Torque Trade-off	7.87
Voltage Range Width	3.6 V Wider voltage range than 87% of 511 Digital Micro servos
Dead-Band-to-Pulse-Width Ratio	0.0008 Finer dead band than 93% of 189 Digital Micro servos