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SRT BH125W
Giant

SRT BH125W

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-09-24
Identity
Brand SRT
Product Number (add)
Category Hobby
Performance
Torque
8.4V 1,735.90 oz-in
7.4V 1,527.60 oz-in
6.0V 1,249.90 oz-in
Speed
8.4V 0.09 sec/60°
7.4V 0.11 sec/60°
6.0V 0.12 sec/60°
Running Current
8.4V 0.600 A
7.4V 0.500 A
6.0V 0.400 A
Stall Current 9.4–13 A
Physical
Weight 7.37 oz
Dimensions L 2.34 in
W 1.16 in
H 2.15 in
Case Material (add)
Drivetrain
Motor Type Brushless
Motor Drive (add)
Gears Steel
Gear Spline/Teeth 15 T
Shaft Size 7.6 mm
Rotation Mode Positional
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Digital
Direction Clockwise
Rotational Range 180°
Mechanical Limit 250°
Pulse Cycle 3 ms
Pulse Width 900-2100 µs
Neutral Position 1500 µs
Dead Band 2 µs
Refresh Rate 333 Hz
Angle Sensor (add)
Control System PWM
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 6–8.4 V
Power Source (add)
Regulator Type (add)
Temperature -10–50 °C
Water Rating (add)
Certification (add)
Idle Current 0.050 A
Connectivity
Connector JR (Universal)
Wire Length 350 mm
Origin
Country of Origin China

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 19.26–37.76 W
Torque Density5.9804 oz-in/g
Stronger than 83% of the 79 Digital Giant servos in the database
Torque-to-Volume Ratio214.17 oz-in/in³
Denser torque than 90% of the 88 Digital Giant servos in the database
Power Density6.470 W/in³
2nd-highest power density of 108 Digital Giant servos
Speed-to-Weight0.03987 (1/sec·g)
Faster than 91% of the 77 Digital Giant servos in the database
Speed-Torque Trade-off149.99
Better balanced than 59% of the 82 Digital Giant servos in the database
Current-per-Torque Ratio0.0104 A/oz-in
More efficient than 39% of the 42 Digital Giant servos in the database
Idle-to-Running Current Ratio0.125
Lower idle draw than 3% of the 36 Hobby servos in the database
No-Load vs Stall Current Spread32.50
Narrower current spread than 13% of the 64 Hobby servos in the database
Torque Gain per Volt16.20%/V
More voltage-responsive (torque) than 62% of the 62 Digital Giant servos in the database
Speed Gain per Volt17.16%/V
More voltage-responsive (speed) than 88% of the 59 Digital Giant servos in the database
Voltage Range Width2.4 V
Wider voltage range than 38% of the 155 Digital Giant servos in the database
Dead-Band-to-Pulse-Width Ratio0.0017
Finer dead band than 15% of the 21 Digital Giant servos in the database

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