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Theta Razor-DH1
Standard

Theta Razor-DH1

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Theta
Product Number TS-RDH1
Category Hobby
Performance
Torque
8.4V 416.60 oz-in
7.4V 388.80 oz-in
6.0V 361.10 oz-in
5.0V 333.30 oz-in Above Average
Speed
8.4V 0.07 sec/60°
7.4V 0.08 sec/60°
6.0V 0.09 sec/60°
5.0V 0.11 sec/60° Above Average
Stall Current ≤3 AAverage
Physical
Weight 2.12 ozAverage
Dimensions L 1.61 in
W 0.81 in
H 1.16 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 Yes
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

TorqueAbove Average
Stronger than 74% of 844 Digital Standard servos at 5.0V
SpeedAbove Average
Faster than 71% of 832 Digital Standard servos at 5.0V
WeightAverage
Lighter than 57% of 1818 Digital Standard servos
Stall CurrentAverage
Lower draw than 52% of 403 Digital Standard servos

Performance Analysis

Torque Density5.5550 oz-in/g
Stronger than 83% of 833 Digital Standard servos
Torque-to-Volume Ratio220.33 oz-in/in³
Denser torque than 86% of 844 Digital Standard servos
Speed-to-Weight0.15432 (1/sec·g)
Faster than 70% of 822 Digital Standard servos
Speed-Torque Trade-off35.99
Better balanced than 62% of 827 Digital Standard servos
Current-per-Torque Ratio0.0090 A/oz-in
More efficient than 84% of 232 Digital Standard servos
Torque Gain per Volt7.35%/V
More voltage-responsive (torque) than 10% of 674 Digital Standard servos
Speed Gain per Volt15.96%/V
More voltage-responsive (speed) than 54% of 688 Digital Standard servos
Voltage Range Width3.4 V
Wider voltage range than 70% of 1271 Digital Standard servos

Notes

Also comes in a Surface version.

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