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Theta THM989
Mini

Theta THM989

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Theta
Product Number TS-THM989
Category Hobby
Performance
Torque
8.4V 319.40 oz-in
7.4V 291.60 oz-in
6.0V 250.00 oz-in
5.0V 208.30 oz-in Top 10%
Speed
8.4V 0.07 sec/60°
7.4V 0.08 sec/60°
6.0V 0.09 sec/60°
5.0V 0.10 sec/60° Average
Stall Current ≤2.6 ABelow Average
Physical
Weight 1.62 ozBottom 10%
Dimensions L 1.40 in
W 0.59 in
H 1.22 in
Case Material Aluminum
Drivetrain
Motor Type Brushless
Gears Metal
Gear Spline/Teeth 25 T
Rotation Mode Standard
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Pulse Width 500-2500 µs
Neutral Position 1520 µs
Refresh Rate 400 Hz
Angle Sensor Magnetic Encoder
Control System PWM
Programmable No
Electrical & Environment
Operating Voltage 5–8.4 V
Connectivity
Connector JR (Universal) estimate
Wire Length 300 mm

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

TorqueTop 10%
Stronger than 98% of the 224 Digital Mini servos at 5.0V
SpeedAverage
Faster than 64% of the 225 Digital Mini servos at 5.0V
WeightBottom 10%
Lighter than 1% of the 455 Digital Mini servos
Stall CurrentBelow Average
Lower draw than 25% of the 56 Digital Mini servos

Performance Analysis

Torque Density4.5283 oz-in/g
Stronger than 89% of the 219 Digital Mini servos in the database
Torque-to-Volume Ratio206.70 oz-in/in³
Denser torque than 94% of the 224 Digital Mini servos in the database
Speed-to-Weight0.21739 (1/sec·g)
Faster than 18% of the 220 Digital Mini servos in the database
Speed-Torque Trade-off20.83
Better balanced than 96% of the 223 Digital Mini servos in the database
Current-per-Torque Ratio0.0125 A/oz-in
1st-highest current-per-torque ratio of 40 Digital Mini servos
Torque Gain per Volt15.69%/V
More voltage-responsive (torque) than 45% of the 190 Digital Mini servos in the database
Speed Gain per Volt12.60%/V
More voltage-responsive (speed) than 23% of the 190 Digital Mini servos in the database
Voltage Range Width3.4 V
Wider voltage range than 74% of the 289 Digital Mini servos in the database

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