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FrSky BLS5402H
Standard

FrSky BLS5402H

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-26
Identity
Brand FrSky
Category Hobby
Performance
Torque
8.4V 422.18 oz-in
7.4V 387.46 oz-in
6.0V 308.30 oz-in
Speed
8.4V 0.05 sec/60°
7.4V 0.06 sec/60°
6.0V 0.07 sec/60°
Stall Current 6.5–9.1 ABottom 10%
Physical
Weight 2.73 ozBelow Average
Dimensions L 1.575 in
W 0.787 in
H 1.319 in
Case Material Aluminum
Drivetrain
Motor Type Brushless
Gears Metal
Gear Spline/Teeth 25 T
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 360°
Mechanical Limit 180°
Neutral Position 760 µs
Refresh Rate 333 Hz
Angle Sensor Hall Effect
Control System FBUS/SBUS/PWM
Programmable Yes
Electrical & Environment
Operating Voltage 4.8–8.4 V
Connectivity
Connector JR (Universal)
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

WeightBelow Average
Lighter than 17% of 1872 Digital Standard servos
Stall CurrentBottom 10%
Lower draw than 4% of 569 Digital Standard servos

Performance Analysis

Shaft Power 8.14–15.61 W
Power Density9.549 W/in³
More power-dense than 98% of 1762 Digital Standard servos
Torque Density3.9781 oz-in/g
Torque-to-Volume Ratio188.57 oz-in/in³
Speed-to-Weight0.18433 (1/sec·g)
Speed-Torque Trade-off21.58
Current-per-Torque Ratio0.0295 A/oz-in
Voltage Range Width3.6 V
Wider voltage range than 83% of 1552 Digital Standard servos

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