Sanwa SDX-851

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-26

Identity
Brand
Product Number	107A53474A
Category	Hobby
Performance
Torque	4.8V65.27 oz-inBottom 10%
Speed	4.8V0.10 sec/60°Average
Physical
Weight	1.76 ozAverage
Dimensions	L 1.594 in W 0.827 in H 1.043 in
Drivetrain
Motor Type	Coreless
Gears	Metal
Gear Spline/Teeth	23 T estimate
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	Z

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Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Compatible Hardware

Amazon eBay

*Spec is estimated from brand data.

Class Comparison

Torque	Bottom 10% Stronger than 8% of 186 Digital Low Profile servos at 4.8V
Speed	Average Faster than 54% of 183 Digital Low Profile servos at 4.8V
Weight	Average Lighter than 61% of 304 Digital Low Profile servos

Performance Analysis

Shaft Power	1.21 W
Power Density	0.878 W/in³ More power-dense than 6% of 273 Digital Low Profile servos
Torque Density	1.3054 oz-in/g Stronger than 4% of 185 Digital Low Profile servos
Torque-to-Volume Ratio	47.47 oz-in/in³ Denser torque than 5% of 186 Digital Low Profile servos
Speed-to-Weight	0.20000 (1/sec·g) Faster than 53% of 182 Digital Low Profile servos
Speed-Torque Trade-off	6.53 Better balanced than 8% of 183 Digital Low Profile servos
Voltage Range Width	1.2 V Wider voltage range than 16% of 276 Digital Low Profile servos