Waveshare WP90

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-09

Identity
Brand
Product Number	WP90 Servo
Category	Hobby
Performance
Torque	6.0V 31.94 oz-in 4.8V 26.25 oz-in
Speed	6.0V 0.10 sec/60° 4.8V 0.13 sec/60°
Running Current	6.0V 0.150 A 4.8V 0.120 A
Stall Current	≤1 AAverage
Physical
Weight	0.56 ozBelow Average
Dimensions	L 0.913 in W 0.476 in H 1.004 in
Case Material	Plastic
Drivetrain
Motor Type	Brushed
Gears	Copper
Rotation Mode	Positional
Control & Signal
Modulation	Digital
Rotational Range	180°
Mechanical Limit	No Limit
Pulse Width	500-2500 µs
Angle Sensor	Potentiometer
Control System	PWM
Electrical & Environment
Operating Voltage	3–8.4 V
Idle Current	0.150 A
Connectivity
Connector	JR (Universal)

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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

*Based on known specs.

Class Comparison

Weight	Below Average Lighter than 23% of 620 Digital Micro servos
Stall Current	Average Lower draw than 42% of 194 Digital Micro servos

Performance Analysis

Shaft Power	0.39–0.59 W
Power Density	1.352 W/in³ More power-dense than 32% of 590 Digital Micro servos
Torque Density	1.6406 oz-in/g
Torque-to-Volume Ratio	60.09 oz-in/in³
Speed-to-Weight	0.50000 (1/sec·g)
Speed-Torque Trade-off	3.28
Current-per-Torque Ratio	0.0381 A/oz-in
Idle-to-Running Current Ratio	1.250
No-Load vs Stall Current Spread	8.33
Voltage Range Width	5.4 V 3rd-highest voltage range width of 511 Digital Micro servos