Code:MKS10008
Barcode:4710150350165
Brand:MKS

HBL669 (0.03s/60°, 5.7kg.cm)

Ultra high speed 63g HV digital narrowband (760µs) brushless standard servo w. metal gears; input voltage 6.0-8.4V, 2xBB. Ideal for tail rotors of 600 class helicopters, compatible with most of 760µs gyro and flybarless systems. Torque 4.2kg.cm, speed 0.05s/60° at 6.0V, torque 5.1kg.cm, speed 0.04s/60° at 7.4V, torque 5.7kg.cm, speed 0.03s/60° at 8.2V. Aluminium mid case for perfect heat dissipation. Dimensions 40x20x40mm, weight 63g. Programmable with DSP-2 programmer.
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Ultra high speed narrowband (760µs) digital standard brushless servo with metal gears and twin ballraced output shaft. Ideal for tail rotors of 500 class helicopters, compatible with most of 760µs gyro and flybarless systems. An aluminium mid case for perfect cooling even under high loads.

Input voltage range 6.0-7.4 V (nominal).

Using the DSP-2 MKS Digital Servo Programmer you can program a wide range of servo parameters:
Neutral: The setting of the neutral position.
Max_PWM (Max. pulse width): The maximum angular range will be limited within this command value.
Min_PWM (Min. pulse width): The minimum angular range will be limited within this command value.
Reverse: Reverse of the PWM command.
Dead_Band: The signal value can be allowed to change under the circumstance without affecting the angle of the output / servo arm.
CMD_Lost (Fail-Safe): The Servo move to the “CMD_Position” when the PWM control signal is lost.
CMD_Position: The emergency position in the case of PWM command lost, if the “ CMD_Lost ” is turned on.
CMD_Time: The Servo will move to the “CMD_Position” after the “CMD Time” when the PWM command is lost.

Servo dimensionsStandard
Servo typeDigital
ProgrammableNo
Torque at 6.0V [kg∙cm]4.2
Torque at 7.4V [kg∙cm]5.1
Torque at 8.2 V [kg∙cm]5.7
Speed at 6.0V [s/60st.]0.05
Speed at 7.4V [s/60st.]0.05
Speed at 8.2 V [s/60st.]0.03
Control pulse width in neutral [µs]760
Frame Rate [Hz]560
Deadband [ms]0.0005
Servo gearsMetal
Ball bearings
High-voltageYes
Power supply [V]6 - 8.4
Length [mm]40
Width [mm]20
Height [mm]40
Weight [g]63
Intended forHelicopters
Servo motor typeBrushless

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Instruction Manual 17.01.2024
© 2025, KAVAN Europe s.r.o.