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 Above 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	Above Average Stronger than 69% of 290 Digital Mini servos at 4.8V
Speed	Bottom 10% Faster than 2% of 293 Digital Mini servos at 4.8V
Weight	Below Average Lighter than 28% of 505 Digital Mini servos

Performance Analysis

Shaft Power	0.64–0.92 W
Power Density	0.939 W/in³ More power-dense than 16% of 482 Digital Mini servos
Torque Density	2.5763 oz-in/g Stronger than 60% of 286 Digital Mini servos
Torque-to-Volume Ratio	77.21 oz-in/in³ Denser torque than 49% of 288 Digital Mini servos
Speed-to-Weight	0.15408 (1/sec·g) Faster than 3% of 289 Digital Mini servos
Speed-Torque Trade-off	16.72 Better balanced than 90% of 288 Digital Mini servos
Torque Gain per Volt	15.35%/V More voltage-responsive (torque) than 41% of 257 Digital Mini servos
Speed Gain per Volt	18.52%/V More voltage-responsive (speed) than 64% of 262 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 24% of 405 Digital Mini servos