Airtronics/ Sanwa 94820

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Compatible Hardware

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28

Identity
Brand
Product Number	474520
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 90.00 oz-in 4.8V 76.00 oz-in Average
Speed	6.0V 0.18 sec/60° 4.8V 0.22 sec/60° Bottom 10%
Physical
Weight	1.04 ozBelow Average
Dimensions	L 1.26 in W 0.63 in H 1.24 in
Case Material	Plastic
Drivetrain
Motor Type	3-pole
Gears	Metal
Gear Spline/Teeth	23 T estimate
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Control System	PWM
Programmable	No
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	Z

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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.

Compatible Hardware

Amazon eBay

*Spec is estimated from brand data.

Class Comparison

Torque	Average Stronger than 65% of 262 Digital Mini servos at 4.8V
Speed	Bottom 10% Faster than 2% of 263 Digital Mini servos at 4.8V
Weight	Below Average Lighter than 29% of 466 Digital Mini servos

Performance Analysis

Shaft Power	0.64–0.92 W
Power Density	0.939 W/in³ More power-dense than 14% of 440 Digital Mini servos
Torque Density	2.5763 oz-in/g Stronger than 59% of 258 Digital Mini servos
Torque-to-Volume Ratio	77.21 oz-in/in³ Denser torque than 48% of 262 Digital Mini servos
Speed-to-Weight	0.15408 (1/sec·g) Faster than 4% of 259 Digital Mini servos
Speed-Torque Trade-off	16.72 Better balanced than 88% of 261 Digital Mini servos
Torque Gain per Volt	15.35%/V More voltage-responsive (torque) than 43% of 232 Digital Mini servos
Speed Gain per Volt	18.52%/V More voltage-responsive (speed) than 64% of 235 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 24% of 351 Digital Mini servos