Flash Hobby M25DHW

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Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	FHS20
Category	Hobby
Performance
Torque	7.0V 359.67 oz-in 6.0V 311.07 oz-in 5.0V 258.30 oz-in
Speed	7.0V 0.16 sec/60° 6.0V 0.20 sec/60° 5.0V 0.24 sec/60°
Stall Current	1.9–2.8 AAbove Average
Physical
Weight	2.75 ozBelow Average
Dimensions	L 1.57 in W 0.79 in H 1.59 in
Case Material	Aluminum
Drivetrain
Motor Type	Cored
Motor Drive	MOS
Gears	Metal
Gear Spline/Teeth	25 T
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Rotational Range	180°
Mechanical Limit	270°
Pulse Width	500-2500 µs
Neutral Position	1500 µs
Dead Band	2 µs
Angle Sensor	Potentiometer
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–7.4 V
Temperature	-20–60 °C
Water Rating	Waterproof
Connectivity
Connector	JR (Universal)
Wire Length	300 mm
Origin
Country of Origin	China

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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.

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*Based on known specs.

Class Comparison

Weight	Below Average Lighter than 15% of 1902 Digital Standard servos
Stall Current	Above Average Lower draw than 65% of 539 Digital Standard servos

Performance Analysis

Shaft Power	1.99–4.16 W
Power Density	2.108 W/in³ More power-dense than 46% of 1759 Digital Standard servos
Torque Density	3.3115 oz-in/g
Torque-to-Volume Ratio	130.98 oz-in/in³
Speed-to-Weight	0.05342 (1/sec·g)
Speed-Torque Trade-off	61.99
Current-per-Torque Ratio	0.0108 A/oz-in
Voltage Range Width	2.6 V Wider voltage range than 65% of 1539 Digital Standard servos
Dead-Band-to-Pulse-Width Ratio	0.0010 Finer dead band than 79% of 468 Digital Standard servos