JR DS189HV

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Technical Specifications

Last Updated: 2026-10-23

Identity
Brand
Product Number	2159
Category	Hobby
Performance
Torque	8.4V 68.06 oz-in 7.4V 59.73 oz-in 6.6V 52.78 oz-in 6.0V 48.62 oz-in Below Average
Speed	8.4V 0.14 sec/60° 7.4V 0.16 sec/60° 6.6V 0.19 sec/60° 6.0V 0.20 sec/60° Bottom 10%
Physical
Weight	0.78 ozAverage
Dimensions	L 1.142 in W 0.43 in H 1.181 in
Drivetrain
Gears	Metal
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Control System	PWM
Electrical & Environment
Operating Voltage	6–8.5 V
Connectivity
Connector	JR (Universal) estimate
Wire Length	50 mm

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*Based on known specs.

Class Comparison

Torque	Below Average Stronger than 26% of 40 Digital Slim servos at 6.0V
Speed	Bottom 10% Faster than 5% of 41 Digital Slim servos at 6.0V
Weight	Average Lighter than 57% of 83 Digital Slim servos

Performance Analysis

Shaft Power	0.45–0.90 W
Power Density	1.550 W/in³ More power-dense than 18% of 83 Digital Slim servos
Torque Density	2.2100 oz-in/g Stronger than 10% of 40 Digital Slim servos
Torque-to-Volume Ratio	83.84 oz-in/in³ Denser torque than 13% of 40 Digital Slim servos
Speed-to-Weight	0.22727 (1/sec·g) Faster than 20% of 41 Digital Slim servos
Speed-Torque Trade-off	9.72 Better balanced than 59% of 40 Digital Slim servos
Voltage Range Width	2.5 V Wider voltage range than 46% of 75 Digital Slim servos