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JR S319
Micro

JR S319

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand JR
Product Number S319
Category Hobby
Performance
Torque
8.4V 23.30 oz-in
6.6V 18.30 oz-in
4.8V 13.90 oz-in
Speed
8.4V 0.04 sec/60°
6.6V 0.05 sec/60°
5.0V 0.06 sec/60°
Physical
Weight 0.21 ozAbove Average
Dimensions L 0.768 in
W 0.394 in
H 0.748 in
Control & Signal
Modulation Digital
Control System PWM
Programmable Yes
Electrical & Environment
Operating Voltage 4.5–8.5 V
Connectivity
Connector JR (Universal) estimate

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.

Class Comparison

WeightAbove Average
Lighter than 85% of 620 Digital Micro servos

Performance Analysis

Shaft Power 0.68–1.08 W
Power Density4.764 W/in³
More power-dense than 78% of 590 Digital Micro servos
Torque Density2.3167 oz-in/g
Torque-to-Volume Ratio61.48 oz-in/in³
Speed-to-Weight2.77778 (1/sec·g)
Speed-Torque Trade-off0.83
Voltage Range Width4.0 V
Wider voltage range than 92% of 511 Digital Micro servos

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