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Power HD TR-4
Micro

Power HD TR-4

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Power HD
Product Number (add)
Category Hobby
Performance
Torque
7.4V 36.11 oz-in
6.0V 30.56 oz-in
4.8V 25.00 oz-in
Speed
7.4V 0.10 sec/60°
7.4V 0.10 sec/60°
6.0V 0.12 sec/60°
6.0V 0.12 sec/60°
4.8V 0.15 sec/60°
4.8V 0.15 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 0.56 oz
Dimensions L 0.89 in
W 0.49 in
H 0.95 in
Case Material (add)
Drivetrain
Motor Type (add)
Motor Drive (add)
Gears Copper / Aluminum
Gear Spline/Teeth (add)
Shaft Size (add)
Rotation Mode (add)
Rotation/Support (add)
Backlash (add)
Control & Signal
Modulation Digital
Direction (add)
Rotational Range (add)
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position 1520 µs
Dead Band (add)
Refresh Rate 50 Hz
Angle Sensor (add)
Control System (add)
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–7.4 V
Power Source (add)
Regulator Type (add)
Temperature -10–60 °C
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal)
Wire Length 350 mm
Origin
Country of Origin Hong Kong

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.

Performance Analysis

Shaft Power 0.31–0.67 W
Torque Density1.5625 oz-in/g
Stronger than 14% of the 237 Digital Micro servos in the database
Torque-to-Volume Ratio60.69 oz-in/in³
Denser torque than 37% of the 239 Digital Micro servos in the database
Power Density1.621 W/in³
More power-dense than 44% of the 543 Digital Micro servos in the database
Speed-to-Weight0.41667 (1/sec·g)
Faster than 6% of the 237 Digital Micro servos in the database
Speed-Torque Trade-off3.75
Better balanced than 67% of the 239 Digital Micro servos in the database
Torque Gain per Volt17.09%/V
More voltage-responsive (torque) than 51% of the 191 Digital Micro servos in the database
Speed Gain per Volt19.23%/V
More voltage-responsive (speed) than 61% of the 193 Digital Micro servos in the database
Voltage Range Width2.6 V
Wider voltage range than 64% of the 405 Digital Micro servos in the database

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