Feetech FB2308M

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Technical Specifications

Last Updated: 2026-10-24

Identity
Brand
Product Number	FB2308M
Category	Hobby
Performance
Torque	12.0V97.23 oz-in
Speed	12.0V0.13 sec/60°
Running Current	12.0V0.135 A
Stall Current	≤1.1 ATop 10%
Physical
Weight	2.10 ozBelow Average
Dimensions	L 1.539 in W 1.319 in H 1.138 in
Case Material	Aluminum
Drivetrain
Motor Type	Brushless
Gears	Steel
Gear Spline/Teeth	25 T
Rotation Mode	Continuous
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Direction	Counterclockwise
Rotational Range	360°
Pulse Width	500-2500 µs
Neutral Position	1500 µs
Dead Band	4 µs
Angle Sensor	Magnetic Encoder
Control System	PWM
Electrical & Environment
Operating Voltage	7.2–12 V
Water Rating	IP67
Idle Current	0.006 A
Connectivity
Connector	JR (Universal)
Wire Length	230 mm
Origin
Country of Origin	China

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*Based on known specs.

Class Comparison

Weight	Below Average Lighter than 21% of 304 Digital Low Profile servos
Stall Current	Top 10% Lower draw than 98% of 81 Digital Low Profile servos

Performance Analysis

Shaft Power	1.38 W
Power Density	0.599 W/in³ More power-dense than 2% of 273 Digital Low Profile servos
Torque Density	1.6341 oz-in/g
Torque-to-Volume Ratio	42.09 oz-in/in³
Speed-to-Weight	0.12928 (1/sec·g)
Speed-Torque Trade-off	12.64
Current-per-Torque Ratio	0.0113 A/oz-in
Idle-to-Running Current Ratio	0.044
No-Load vs Stall Current Spread	8.15
Voltage Range Width	4.8 V Wider voltage range than 96% of 276 Digital Low Profile servos
Dead-Band-to-Pulse-Width Ratio	0.0020 Finer dead band than 31% of 79 Digital Low Profile servos