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Flash Hobby BLS3837MED
Standard

Flash Hobby BLS3837MED

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand Flash Hobby
Category Hobby
Performance
Torque
8.4V 513.93 oz-in
7.4V 430.59 oz-in
6.0V 361.14 oz-in Above Average
Speed
8.4V 0.07 sec/60°
7.4V 0.08 sec/60°
6.0V 0.10 sec/60° Above Average
Physical
Weight 2.82 ozBottom 10%
Dimensions L 1.57 in
W 0.79 in
H 1.50 in
Case Material Aluminum
Drivetrain
Motor Type Brushless
Gears Steel
Gear Spline/Teeth 25 T
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 180°
Pulse Width 500-2500 µs
Angle Sensor Magnetic Encoder
Control System PWM
Programmable Yes
Electrical & Environment
Operating Voltage 6–8.4 V
Water Rating Waterproof
Connectivity
Connector JR (Universal)
Wire Length 300 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.

Class Comparison

TorqueAbove Average
Stronger than 79% of 1043 Digital Standard servos at 6.0V
SpeedAbove Average
Faster than 74% of 1041 Digital Standard servos at 6.0V
WeightBottom 10%
Lighter than 10% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 6.68–13.58 W
Power Density7.297 W/in³
More power-dense than 92% of 1759 Digital Standard servos
Torque Density4.5143 oz-in/g
Stronger than 70% of 1036 Digital Standard servos
Torque-to-Volume Ratio194.11 oz-in/in³
Denser torque than 78% of 1042 Digital Standard servos
Speed-to-Weight0.12500 (1/sec·g)
Faster than 57% of 1033 Digital Standard servos
Speed-Torque Trade-off36.11
Better balanced than 60% of 1031 Digital Standard servos
Torque Gain per Volt17.63%/V
More voltage-responsive (torque) than 67% of 850 Digital Standard servos
Speed Gain per Volt17.85%/V
More voltage-responsive (speed) than 63% of 871 Digital Standard servos
Voltage Range Width2.4 V
Wider voltage range than 50% of 1539 Digital Standard servos

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