Brushless DC-Servomotors Series 0620 ... B

2 Pole Technology

Key Features

Nominal voltage:

6 ... 12 V

Rated torque up to:

0.3 mNm

No-load speed up to:

48600 min⁻¹

Stall torque up to:

0.732 mNm

Diameter:

6 mm

Length:

20 mm

Advantages

High density ironless system FAULHABER winding

Digital or analog hall sensors available

Extremely smooth speed control

Sensitive positioning control

Variants:

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance, phase-phase	R	8.8 Ω
Efficiency, max.	η_max.	51 %
No-load speed	n₀	48600 min⁻¹
No-load current	I₀	0.056 A
Stall torque	M_H	0.732 mNm
Friction torque, static	C₀	0.011 mNm
Friction torque, dynamic	C_V	1.02 ·10⁻⁶ mNm/min⁻¹
Speed constant	k_n	8761 min⁻¹/V
Back-EMF constant	k_E	0.114 mV/min⁻¹
Torque constant	k_M	1.09 mNm/A
Current constant	k_I	0.917 A/mNm
Slope of n-M curve	Δn/ΔM	70730 min⁻¹/mNm
Terminal inductance, phase-phase	L	28 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.0095 gcm²
Angular acceleration	α_max.	771 ·10³rad/s²
Thermal resistance	R_th1/R_th2	13.2 / 84.3 K/W
Thermal time constant	τ_w1/τ_w2	1.1 / 89 s
Operating temperature range		-20 ... 100 °C
Winding temperature, max.		125 °C
Housing material		aluminium, black anodized
Mass		2.5 g
Direction of rotation		electronically reversible
Speed up to	n_max.	100000 min⁻¹
Number of pole pairs		1
Hall sensors		digital
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance, phase-phase	R	8.8 Ω
Efficiency, max.	η_max.	51 %
No-load speed	n₀	48600 min⁻¹
No-load current	I₀	0.056 A
Stall torque	M_H	0.732 mNm
Friction torque, static	C₀	0.011 mNm
Friction torque, dynamic	C_V	1.02 ·10⁻⁶ mNm/min⁻¹
Speed constant	k_n	8761 min⁻¹/V
Back-EMF constant	k_E	0.114 mV/min⁻¹
Torque constant	k_M	1.09 mNm/A
Current constant	k_I	0.917 A/mNm
Slope of n-M curve	Δn/ΔM	70730 min⁻¹/mNm
Terminal inductance, phase-phase	L	28 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.0095 gcm²
Angular acceleration	α_max.	771 ·10³rad/s²
Thermal resistance	R_th1/R_th2	13.2 / 84.3 K/W
Thermal time constant	τ_w1/τ_w2	1.1 / 89 s
Operating temperature range		-20 ... 100 °C
Winding temperature, max.		125 °C
Housing material		aluminium, black anodized
Mass		2.5 g
Direction of rotation		electronically reversible
Speed up to	n_max.	100000 min⁻¹
Number of pole pairs		1
Hall sensors		digital
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance, phase-phase	R	60.2 Ω
Efficiency, max.	η_max.	50 %
No-load speed	n₀	37300 min⁻¹
No-load current	I₀	0.018 A
Stall torque	M_H	0.551 mNm
Friction torque, static	C₀	0.011 mNm
Friction torque, dynamic	C_V	1.02 ·10⁻⁶ mNm/min⁻¹
Speed constant	k_n	3386 min⁻¹/V
Back-EMF constant	k_E	0.295 mV/min⁻¹
Torque constant	k_M	2.82 mNm/A
Current constant	k_I	0.355 A/mNm
Slope of n-M curve	Δn/ΔM	72289 min⁻¹/mNm
Terminal inductance, phase-phase	L	192 µH
Mechanical time constant	τ_m	7.2 ms
Rotor inertia	J	0.0095 gcm²
Angular acceleration	α_max.	580 ·10³rad/s²
Thermal resistance	R_th1/R_th2	13.2 / 84.3 K/W
Thermal time constant	τ_w1/τ_w2	1.1 / 89 s
Operating temperature range		-20 ... 100 °C
Winding temperature, max.		125 °C
Housing material		aluminium, black anodized
Mass		2.5 g
Direction of rotation		electronically reversible
Speed up to	n_max.	100000 min⁻¹
Number of pole pairs		1
Hall sensors		digital
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance, phase-phase	R	60.2 Ω
Efficiency, max.	η_max.	50 %
No-load speed	n₀	37300 min⁻¹
No-load current	I₀	0.018 A
Stall torque	M_H	0.551 mNm
Friction torque, static	C₀	0.011 mNm
Friction torque, dynamic	C_V	1.02 ·10⁻⁶ mNm/min⁻¹
Speed constant	k_n	3386 min⁻¹/V
Back-EMF constant	k_E	0.295 mV/min⁻¹
Torque constant	k_M	2.82 mNm/A
Current constant	k_I	0.355 A/mNm
Slope of n-M curve	Δn/ΔM	72289 min⁻¹/mNm
Terminal inductance, phase-phase	L	192 µH
Mechanical time constant	τ_m	7.2 ms
Rotor inertia	J	0.0095 gcm²
Angular acceleration	α_max.	580 ·10³rad/s²
Thermal resistance	R_th1/R_th2	13.2 / 84.3 K/W
Thermal time constant	τ_w1/τ_w2	1.1 / 89 s
Operating temperature range		-20 ... 100 °C
Winding temperature, max.		125 °C
Housing material		aluminium, black anodized
Mass		2.5 g
Direction of rotation		electronically reversible
Speed up to	n_max.	100000 min⁻¹
Number of pole pairs		1
Hall sensors		digital
Magnet material		NdFeB

Operating Area

Recommended operation areas at nominal voltage 6 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 (R_th2 50% reduced).

The nominal voltage (U_N) 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