FAULHABER SR Series 1331 ... SR by FAULHABER

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Datasheet

Variants

DC-Micromotors Series 1331 ... SR

Precious Metal Commutation

Key Features

Nominal voltage:

6 ... 24 V

Rated torque up to:

3.44 mNm

No-load speed up to:

10700 min⁻¹

Stall torque up to:

11.2 mNm

Diameter:

13 mm

Length:

31.2 mm

Advantages

Powerful rare-earth magnet

Wide operating temperature range: -30 °C to +85 °C (optional to +125 °C)

All-steel housing with corrosion-resistant coating

No cogging torque, highly dynamic performance, precise speed control

Low current and starting voltage

Extremely compact and lightweight design with integrated encoder

Variants:

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	2.83 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	10700 min⁻¹
No-load current	I₀	0.0226 A
Stall torque	M_H	11.2 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1790 min⁻¹/V
Back-EMF constant	k_E	0.56 mV/min⁻¹
Torque constant	k_M	5.33 mNm/A
Current constant	k_I	0.187 A/mNm
Slope of n-M curve	Δn/ΔM	950 min⁻¹/mNm
Rotor inductance	L	70 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.71 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	13.7 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	9910 min⁻¹
No-load current	I₀	0.0105 A
Stall torque	M_H	9.94 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	833 min⁻¹/V
Back-EMF constant	k_E	1.2 mV/min⁻¹
Torque constant	k_M	11.5 mNm/A
Current constant	k_I	0.087 A/mNm
Slope of n-M curve	Δn/ΔM	993 min⁻¹/mNm
Rotor inductance	L	310 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.67 gcm²
Angular acceleration	α_max.	150 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	52.9 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	10500 min⁻¹
No-load current	I₀	0.0055 A
Stall torque	M_H	9.74 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	439 min⁻¹/V
Back-EMF constant	k_E	2.28 mV/min⁻¹
Torque constant	k_M	21.7 mNm/A
Current constant	k_I	0.046 A/mNm
Slope of n-M curve	Δn/ΔM	1070 min⁻¹/mNm
Rotor inductance	L	1100 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.63 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	2.83 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	10700 min⁻¹
No-load current	I₀	0.0226 A
Stall torque	M_H	11.2 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1790 min⁻¹/V
Back-EMF constant	k_E	0.56 mV/min⁻¹
Torque constant	k_M	5.33 mNm/A
Current constant	k_I	0.187 A/mNm
Slope of n-M curve	Δn/ΔM	950 min⁻¹/mNm
Rotor inductance	L	70 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.71 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	13.7 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	9910 min⁻¹
No-load current	I₀	0.0105 A
Stall torque	M_H	9.94 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	833 min⁻¹/V
Back-EMF constant	k_E	1.2 mV/min⁻¹
Torque constant	k_M	11.5 mNm/A
Current constant	k_I	0.087 A/mNm
Slope of n-M curve	Δn/ΔM	993 min⁻¹/mNm
Rotor inductance	L	310 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.67 gcm²
Angular acceleration	α_max.	150 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	52.9 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	10500 min⁻¹
No-load current	I₀	0.0055 A
Stall torque	M_H	9.74 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	439 min⁻¹/V
Back-EMF constant	k_E	2.28 mV/min⁻¹
Torque constant	k_M	21.7 mNm/A
Current constant	k_I	0.046 A/mNm
Slope of n-M curve	Δn/ΔM	1070 min⁻¹/mNm
Rotor inductance	L	1100 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.63 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	2.83 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	10700 min⁻¹
No-load current	I₀	0.0226 A
Stall torque	M_H	11.2 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1790 min⁻¹/V
Back-EMF constant	k_E	0.56 mV/min⁻¹
Torque constant	k_M	5.33 mNm/A
Current constant	k_I	0.187 A/mNm
Slope of n-M curve	Δn/ΔM	950 min⁻¹/mNm
Rotor inductance	L	70 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.71 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	13.7 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	9910 min⁻¹
No-load current	I₀	0.0105 A
Stall torque	M_H	9.94 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	833 min⁻¹/V
Back-EMF constant	k_E	1.2 mV/min⁻¹
Torque constant	k_M	11.5 mNm/A
Current constant	k_I	0.087 A/mNm
Slope of n-M curve	Δn/ΔM	993 min⁻¹/mNm
Rotor inductance	L	310 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.67 gcm²
Angular acceleration	α_max.	150 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	52.9 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	10500 min⁻¹
No-load current	I₀	0.0055 A
Stall torque	M_H	9.74 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	439 min⁻¹/V
Back-EMF constant	k_E	2.28 mV/min⁻¹
Torque constant	k_M	21.7 mNm/A
Current constant	k_I	0.046 A/mNm
Slope of n-M curve	Δn/ΔM	1070 min⁻¹/mNm
Rotor inductance	L	1100 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.63 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	2.83 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	10700 min⁻¹
No-load current	I₀	0.0226 A
Stall torque	M_H	11.2 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1790 min⁻¹/V
Back-EMF constant	k_E	0.56 mV/min⁻¹
Torque constant	k_M	5.33 mNm/A
Current constant	k_I	0.187 A/mNm
Slope of n-M curve	Δn/ΔM	950 min⁻¹/mNm
Rotor inductance	L	70 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.71 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	13.7 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	9910 min⁻¹
No-load current	I₀	0.0105 A
Stall torque	M_H	9.94 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	833 min⁻¹/V
Back-EMF constant	k_E	1.2 mV/min⁻¹
Torque constant	k_M	11.5 mNm/A
Current constant	k_I	0.087 A/mNm
Slope of n-M curve	Δn/ΔM	993 min⁻¹/mNm
Rotor inductance	L	310 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.67 gcm²
Angular acceleration	α_max.	150 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	52.9 Ω
Efficiency, max.	η_max.	79 %
No-load speed	n₀	10500 min⁻¹
No-load current	I₀	0.0055 A
Stall torque	M_H	9.74 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	439 min⁻¹/V
Back-EMF constant	k_E	2.28 mV/min⁻¹
Torque constant	k_M	21.7 mNm/A
Current constant	k_I	0.046 A/mNm
Slope of n-M curve	Δn/ΔM	1070 min⁻¹/mNm
Rotor inductance	L	1100 µH
Mechanical time constant	τ_m	7 ms
Rotor inertia	J	0.63 gcm²
Angular acceleration	α_max.	160 ·10³rad/s²
Thermal resistance	R_th1/R_th2	11 / 31.29 K/W
Thermal time constant	τ_w1/τ_w2	8.1 / 247.2 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		19 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	12000 min⁻¹
Number of pole pairs		1
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

Operating Area

Recommended operation areas at nominal voltage 12 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).

Characteristic curves of motor

Operating Area

Recommended operation areas at nominal voltage 24 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).

Characteristic curves of motor

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3D-CAD Files

Your Choice

Selected Variant

Series 1331T006SR

Precious Metal Commutation

Key Features

Nominal voltage: 6 V

Rated torque up to: 1.96 mNm

No-load speed up to: 10700 min⁻¹

Stall torque up to: 11.2 mNm

Diameter: 13 mm

Length: 31.2 mm

Selected Variant

Series 1331T012SR

Precious Metal Commutation

Key Features

Nominal voltage: 12 V

Rated torque up to: 3.44 mNm

No-load speed up to: 9910 min⁻¹

Stall torque up to: 9.94 mNm

Diameter: 13 mm

Length: 31.2 mm

Selected Variant

Series 1331T024SR

Precious Metal Commutation

Key Features

Nominal voltage: 24 V

Rated torque up to: 3.31 mNm

No-load speed up to: 10500 min⁻¹

Stall torque up to: 9.74 mNm

Diameter: 13 mm

Length: 31.2 mm