RC-Tek SDG-402MG

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	SDG-402MG
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 34.55 oz-in 4.8V 27.87 oz-in Average
Speed	6.0V 0.13 sec/60° 4.8V 0.16 sec/60° Below Average
Physical
Weight	0.37 ozAverage
Dimensions	L 0.91 in W 0.45 in H 0.95 in
Drivetrain
Gears	Metal
Control & Signal
Modulation	Digital
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Origin
Country of Origin	Taiwan

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Compatible Hardware

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*Based on known specs.

Class Comparison

Torque	Average Stronger than 54% of 328 Digital Micro servos at 4.8V
Speed	Below Average Faster than 13% of 328 Digital Micro servos at 4.8V
Weight	Average Lighter than 48% of 620 Digital Micro servos

Performance Analysis

Shaft Power	0.32–0.49 W
Power Density	1.263 W/in³ More power-dense than 28% of 590 Digital Micro servos
Torque Density	2.6417 oz-in/g Stronger than 58% of 327 Digital Micro servos
Torque-to-Volume Ratio	71.64 oz-in/in³ Denser torque than 49% of 327 Digital Micro servos
Speed-to-Weight	0.59242 (1/sec·g) Faster than 30% of 327 Digital Micro servos
Speed-Torque Trade-off	4.46 Better balanced than 71% of 327 Digital Micro servos
Torque Gain per Volt	19.97%/V More voltage-responsive (torque) than 67% of 268 Digital Micro servos
Speed Gain per Volt	19.22%/V More voltage-responsive (speed) than 61% of 273 Digital Micro servos
Voltage Range Width	1.2 V Wider voltage range than 39% of 511 Digital Micro servos