SkyHolic HDS-477

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Technical Specifications

Last Updated: 2026-10-24

Identity
Brand
Product Number	S105
Category	Hobby
Performance
Torque	6.0V 44.40 oz-in 4.8V 37.50 oz-in Below Average
Speed	6.0V 0.10 sec/60° 4.8V 0.12 sec/60° Average
Physical
Weight	1.15 ozBelow Average
Dimensions	L 1.22 in W 0.59 in H 1.20 in
Drivetrain
Motor Type	Brushed
Gears	Metal
Rotation/Support	Single Bearing
Control & Signal
Modulation	Digital
Mechanical Limit	45°
Neutral Position	1500 µs
Dead Band	1 µs
Control System	PWM
Programmable	Yes
Electrical & Environment
Operating Voltage	4.8–6 V
Origin
Country of Origin	South Korea

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Below Average Stronger than 20% of 290 Digital Mini servos at 4.8V
Speed	Average Faster than 52% of 293 Digital Mini servos at 4.8V
Weight	Below Average Lighter than 21% of 505 Digital Mini servos

Performance Analysis

Shaft Power	0.58–0.82 W
Power Density	0.950 W/in³ More power-dense than 16% of 482 Digital Mini servos
Torque Density	1.1539 oz-in/g Stronger than 8% of 286 Digital Mini servos
Torque-to-Volume Ratio	43.41 oz-in/in³ Denser torque than 14% of 288 Digital Mini servos
Speed-to-Weight	0.25641 (1/sec·g) Faster than 26% of 289 Digital Mini servos
Speed-Torque Trade-off	4.50 Better balanced than 28% of 288 Digital Mini servos
Torque Gain per Volt	15.33%/V More voltage-responsive (torque) than 41% of 257 Digital Mini servos
Speed Gain per Volt	16.67%/V More voltage-responsive (speed) than 52% of 262 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 27% of 405 Digital Mini servos