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Racerstar MG90S
Mini

Racerstar MG90S

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Racerstar
Product Number (add)
Category Hobby
Performance
Torque
6.0V 30.55 oz-in
4.8V 25.00 oz-in
Speed
6.0V 0.08 sec/60°
4.8V 0.10 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 0.71 oz
Dimensions L 0.90 in
W 0.48 in
H 1.12 in
Case Material (add)
Drivetrain
Motor Type Coreless
Motor Drive (add)
Gears Metal
Gear Spline/Teeth 21 T estimate
Shaft Size (add)
Rotation Mode (add)
Rotation/Support (add)
Backlash (add)
Control & Signal
Modulation Analog
Direction (add)
Rotational Range (add)
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position (add)
Dead Band (add)
Refresh Rate (add)
Angle Sensor (add)
Control System PWM
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–6 V
Power Source (add)
Regulator Type (add)
Temperature (add)
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal)
Wire Length 175 mm
Origin
Country of Origin (add)

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.

Performance Analysis

Shaft Power 0.46–0.71 W
Torque Density1.2500 oz-in/g
Stronger than 11% of the 67 Analog Mini servos in the database
Torque-to-Volume Ratio51.67 oz-in/in³
Denser torque than 47% of the 67 Analog Mini servos in the database
Power Density1.459 W/in³
More power-dense than 95% of the 166 Analog Mini servos in the database
Speed-to-Weight0.50000 (1/sec·g)
Faster than 73% of the 67 Analog Mini servos in the database
Speed-Torque Trade-off2.50
Better balanced than 12% of the 67 Analog Mini servos in the database
Torque Gain per Volt18.50%/V
More voltage-responsive (torque) than 76% of the 46 Analog Mini servos in the database
Speed Gain per Volt20.83%/V
More voltage-responsive (speed) than 80% of the 47 Analog Mini servos in the database
Voltage Range Width1.2 V
Wider voltage range than 5% of the 77 Analog Mini servos in the database

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