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Brushless DC-Servomotors Series 0308 ... B

2 Pole Technology, sensorless

Key Features
Nominal voltage:
3 V
Rated torque up to:
0.013 mNm
No-load speed up to:
61000 min⁻¹
Stall torque up to:
0.026 mNm
Diameter:
3 mm
Length:
8.4 mm
Advantages
Extremely compact design. Diameters ranging from 3 mm to 5 mm
For applications where space is very limited
2-pole design with medium to high speeds
Matching, highly compact gearheads available
Matching speed controllers available
Variants:
Series 0308H003B
UN : Nominal voltage : 3 V |MN : Rated torque up to : 0.013 mNm |n0 : No-load speed up to : 61000 min⁻¹ |MH : Stall torque up to : 0.026 mNm |Ø : Diameter : 3 mm |L : Length : 8.4 mm

Values at 22° and nominal voltageValue
Nominal voltageUN 3 V
Terminal resistance, phase-phaseR 34 Ω
Efficiency, max.ηmax. 20 %
No-load speedn0 61000 min⁻¹
No-load currentI0 0.027 A
Stall torqueMH 0.026 mNm
Friction torque, staticC0 0.00177 mNm
Friction torque, dynamicCV 1.09 ·10⁻⁷ mNm/min⁻¹
Speed constantkn 29800 min⁻¹/V
Back-EMF constantkE 0.033 mV/min⁻¹
Torque constantkM 0.32 mNm/A
Current constantkI 3.12 A/mNm
Slope of n-M curveΔn/ΔM 3200000 min⁻¹/mNm
Terminal inductance, phase-phaseL 60 µH
Mechanical time constantτm 7 ms
Rotor inertiaJ 0.0002 gcm²
Angular accelerationαmax. 1323 ·10³rad/s²
Thermal resistanceRth1/Rth2 60 / 300 K/W
Thermal time constantτw1/τw2 0.5 / 45 s
Operating temperature range -30 ... 60 °C
Winding temperature, max. 60 °C
Housing material Nickel alloy
Mass 0.35 g
Direction of rotation electronically reversible
Speed up tonmax. 96000 min⁻¹
Number of pole pairs 1
Hall sensors without
Magnet material NdFeB

Values at 22° and nominal voltageValue
Nominal voltageUN 3 V
Terminal resistance, phase-phaseR 34 Ω
Efficiency, max.ηmax. 20 %
No-load speedn0 61000 min⁻¹
No-load currentI0 0.027 A
Stall torqueMH 0.026 mNm
Friction torque, staticC0 0.00177 mNm
Friction torque, dynamicCV 1.09 ·10⁻⁷ mNm/min⁻¹
Speed constantkn 29800 min⁻¹/V
Back-EMF constantkE 0.033 mV/min⁻¹
Torque constantkM 0.32 mNm/A
Current constantkI 3.12 A/mNm
Slope of n-M curveΔn/ΔM 3200000 min⁻¹/mNm
Terminal inductance, phase-phaseL 60 µH
Mechanical time constantτm 7 ms
Rotor inertiaJ 0.0002 gcm²
Angular accelerationαmax. 1323 ·10³rad/s²
Thermal resistanceRth1/Rth2 60 / 300 K/W
Thermal time constantτw1/τw2 0.5 / 45 s
Operating temperature range -30 ... 60 °C
Winding temperature, max. 60 °C
Housing material Nickel alloy
Mass 0.35 g
Direction of rotation electronically reversible
Speed up tonmax. 96000 min⁻¹
Number of pole pairs 1
Hall sensors without
Magnet material NdFeB
Operating Area
Operating Area (0308H003B)
Recommended operation areas at nominal voltage 3 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.
The diagram shows the motor in a completely insulated as well as thermally coupled condition (Rth2 50% reduced).
The nominal voltage (UN) curve shows the operating point at nominal voltage in the insulated and thermally coupled condition. Any points of operation above the curve at nominal voltage will require a higher operating voltage. Any points below the nominal voltage curve will require less voltage.

Characteristic curves of motor
Characteristic curves of motor (0308H003B)
Precision Gearheads
Planetary Gearheads
Accessories
Adapter and cables
Cables and Accessories Series  by FAULHABER
Series Cables and Accessories
-
Drive Electronics
Speed Controllers
SC 1801 F Series  by FAULHABER
Series SC 1801 F
2-Quadrant PWM configurable via PC

Download

pdf
Datasheet
pdf
Technical Information
zip
3D-CAD Files
FAULHABER B-Micro Series 0308 ... B by FAULHABER
FAULHABER B-Micro Series 0308 ... B by FAULHABER
Your Choice
Selected Variant
Series 0308H003B
2 Pole Technology, sensorless
Key Features
Nominal voltage: 3 V
Rated torque up to: 0.013 mNm
No-load speed up to: 61000 min⁻¹
Stall torque up to: 0.026 mNm
Diameter: 3 mm
Length: 8.4 mm

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