RC-Tek SDG-502MG

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*Based on known specs.

Technical Specifications

Last Updated: 2026-07-10

Identity
Brand
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 55.40 oz-in 4.8V 47.30 oz-in Average
Speed	6.0V 0.12 sec/60° 4.8V 0.16 sec/60° Below Average
Physical
Weight	0.76 ozAbove Average
Dimensions	L 1.18 in W 0.51 in H 1.24 in
Drivetrain
Motor Type	3-pole
Gears	Metal
Rotation/Support	Single Bearing
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

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Average Stronger than 35% of 290 Digital Mini servos at 4.8V
Speed	Below Average Faster than 19% of 293 Digital Mini servos at 4.8V
Weight	Above Average Lighter than 67% of 505 Digital Mini servos

Performance Analysis

Shaft Power	0.55–0.85 W
Power Density	1.144 W/in³ More power-dense than 25% of 482 Digital Mini servos
Torque Density	2.1898 oz-in/g Stronger than 44% of 286 Digital Mini servos
Torque-to-Volume Ratio	63.39 oz-in/in³ Denser torque than 37% of 288 Digital Mini servos
Speed-to-Weight	0.28935 (1/sec·g) Faster than 37% of 289 Digital Mini servos
Speed-Torque Trade-off	7.57 Better balanced than 55% of 288 Digital Mini servos
Torque Gain per Volt	14.27%/V More voltage-responsive (torque) than 36% of 257 Digital Mini servos
Speed Gain per Volt	27.78%/V More voltage-responsive (speed) than 94% of 262 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 30% of 405 Digital Mini servos