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Productcategory: Brushless DC-Servomotors
Productfamily: FAULHABER B
Nominal voltage: UN 12 V
Terminal resistance: R 4.36 Ω
Efficiency motor, max.: ηmax 68 %
No-load speed up to: n0 30800 min⁻¹
No-load current: I0 0.087 A
Rated torque up to: MN 2.62 mNm
Stall torque up to: MH 9.79 mNm
Friction torque, static: C0 0.148 mNm
Friction torque, dynamic: CV 5.33 ·10⁻⁶ mNm/min⁻¹
Speed constant: kn 2645 min⁻¹/V
Back-EMF constant: kE 0.378 mV/min⁻¹
Torque constant: kM 3.61 mNm/A
Current constant: kI 0.277 A/mNm
Slope of n-M curve: 3195 min⁻¹/mNm
Rotor inductance: L 134 µH
Mechanical time constant: Tm 18.1 ms
Rotor inertia: J 0.54 gcm²
Angular acceleration: αmax. 181 ·10³rad/s²
Thermal resistance Rth1: Rth1 5.6 K/W
Thermal resistance Rth2: Rth2 22.5 K/W
Thermal time constant (winding): τw1 5.7 s
Thermal time constant (housing): τw2 283 s
Housing material: aluminium, black anodized
Operating temperature, min.: -30 °C
Operating temperature, max.: 125 °C
Winding temperature, max.: 125 °C
Mass: 30 g
Speed up to: nmax. 70000 min⁻¹

Operating Area of motor

1628T012B
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.

Motor Characteristic curves

1628T012B
Serie 1628 ... B

Application note

AN 162 - Analog Hall Sensors
AN 163 - Digital Hall Sensors
AN 183 - Equivalent DC-current in FAULHABER SC and MC
AN 190 - Selection of a third-party motor driver