JR DS189HV

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Technical Specifications

Last Updated: 2026-10-09

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 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 1.18 in W 0.43 in H 1.14 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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Compatible Hardware

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*Based on known specs.

Class Comparison

Torque	Average Stronger than 38% of 262 Digital Mini servos at 6.0V
Speed	Bottom 10% Faster than 5% of 263 Digital Mini servos at 6.0V
Weight	Average Lighter than 65% of 466 Digital Mini servos

Performance Analysis

Shaft Power	0.45–0.90 W
Power Density	1.554 W/in³ More power-dense than 47% of 440 Digital Mini servos
Torque Density	2.2100 oz-in/g Stronger than 41% of 258 Digital Mini servos
Torque-to-Volume Ratio	84.05 oz-in/in³ Denser torque than 54% of 262 Digital Mini servos
Speed-to-Weight	0.22727 (1/sec·g) Faster than 21% of 259 Digital Mini servos
Speed-Torque Trade-off	9.72 Better balanced than 63% of 261 Digital Mini servos
Voltage Range Width	2.5 V Wider voltage range than 65% of 351 Digital Mini servos