Flash Hobby FH-2502

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-09

Identity
Brand
Category	Hobby
Performance
Torque	4.2V 2.22 oz-in 3.7V 1.67 oz-in
Speed	4.2V 0.06 sec/60° 3.7V 0.07 sec/60°
Running Current	4.2V 0.310 A 3.7V 0.210 A
Stall Current	0.21–0.31 A
Physical
Weight	0.07 ozAbove Average
Dimensions	L 0.63 in W 0.32 in H 0.65 in
Case Material	Nylon / Fiberglass
Drivetrain
Motor Type	Coreless
Gears	Plastic
Gear Spline/Teeth	25 T
Rotation Mode	Positional
Rotation/Support	Bushing
Control & Signal
Modulation	Digital
Rotational Range	120°
Mechanical Limit	180°
Pulse Width	800-2200 µs
Dead Band	5 µs
Angle Sensor	Potentiometer
Control System	PWM
Electrical & Environment
Operating Voltage	3.6–4.2 V
Power Source	LiPo
Temperature	-10–50 °C
Connectivity
Connector	JR \| JST
Wire Length	110 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.

Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Weight

Above Average

Lighter than 70% of 41 Digital Nano servos

Performance Analysis

Shaft Power	0.04–0.07 W
Power Density	0.522 W/in³ More power-dense than 24% of 35 Digital Nano servos
Torque Density	0.8350 oz-in/g
Torque-to-Volume Ratio	12.74 oz-in/in³
Speed-to-Weight	7.14286 (1/sec·g)
Speed-Torque Trade-off	0.12
Current-per-Torque Ratio	0.1856 A/oz-in
No-Load vs Stall Current Spread	1.48
Voltage Range Width	0.6 V Wider voltage range than 16% of 32 Digital Nano servos
Dead-Band-to-Pulse-Width Ratio	0.0036 Finer dead band than 14% of 973 Hobby servos