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Robbe FS-0090
Standard

Robbe FS-0090

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand Robbe
Product Number S0090
Category Hobby
Performance
Torque
7.4V 138.90 oz-in
6.0V 125.01 oz-in Above Average
Speed
7.4V 0.12 sec/60°
6.0V 0.14 sec/60° Above Average
Running Current
7.4V 0.060 A
6.0V 0.050 A Top 10%
Stall Current 3.1–3.4 ABottom 10%
Physical
Weight 2.05 ozBelow Average
Dimensions L 1.59 in
W 0.79 in
H 1.59 in
Case Material Plastic
Drivetrain
Motor Type 3-pole
Gears Metal
Gear Spline/Teeth 25 T
Rotation/Support Single Bearing
Control & Signal
Modulation Analog
Rotational Range 90°
Mechanical Limit 45°
Neutral Position 1500 µs
Dead Band 3 µs
Control System PWM
Electrical & Environment
Operating Voltage 6–7.4 V
Temperature -10–50 °C
Idle Current 0.005 A
Connectivity
Connector JR (Universal) estimate
Wire Length 300 mm
Origin
Country of Origin Austria

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.

Class Comparison

TorqueAbove Average
Stronger than 75% of 192 Analog Standard servos at 6.0V
SpeedAbove Average
Faster than 83% of 190 Analog Standard servos at 6.0V
WeightBelow Average
Lighter than 16% of 448 Analog Standard servos
Running CurrentTop 10%
Lower draw than 98% of 50 Analog Standard servos at 6.0V
Stall CurrentBottom 10%
Lower draw than 3% of 64 Analog Standard servos

Performance Analysis

Shaft Power 1.65–2.14 W
Power Density1.072 W/in³
More power-dense than 83% of 437 Analog Standard servos
Torque Density2.1553 oz-in/g
Stronger than 69% of 192 Analog Standard servos
Torque-to-Volume Ratio62.59 oz-in/in³
Denser torque than 72% of 192 Analog Standard servos
Speed-to-Weight0.12315 (1/sec·g)
Faster than 63% of 190 Analog Standard servos
Speed-Torque Trade-off17.50
Better balanced than 66% of 190 Analog Standard servos
Current-per-Torque Ratio0.0272 A/oz-in
More efficient than 9% of 58 Analog Standard servos
Idle-to-Running Current Ratio0.100
Lower idle draw than 18% of 39 Analog Standard servos
No-Load vs Stall Current Spread68.00
Narrower current spread than 3% of 37 Analog Standard servos
Torque Gain per Volt7.94%/V
More voltage-responsive (torque) than 15% of 145 Analog Standard servos
Speed Gain per Volt11.90%/V
More voltage-responsive (speed) than 32% of 147 Analog Standard servos
Voltage Range Width1.4 V
Wider voltage range than 81% of 229 Analog Standard servos

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