DC-Micromotors Series 1516 ... SR

Precious Metal Commutation

Key Features

Nominal voltage:

6 ... 12 V

Rated torque up to:

0.918 mNm

No-load speed up to:

13000 min⁻¹

Stall torque up to:

1.63 mNm

Diameter:

15 mm

Length:

15.8 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	14.1 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	13000 min⁻¹
No-load current	I₀	0.0294 A
Stall torque	M_H	1.63 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	2320 min⁻¹/V
Back-EMF constant	k_E	0.434 mV/min⁻¹
Torque constant	k_M	4.12 mNm/A
Current constant	k_I	0.241 A/mNm
Slope of n-M curve	Δn/ΔM	7970 min⁻¹/mNm
Rotor inductance	L	99.1 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	9 V
Terminal resistance	R	32.5 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	12900 min⁻¹
No-load current	I₀	0.0193 A
Stall torque	M_H	1.61 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1530 min⁻¹/V
Back-EMF constant	k_E	0.655 mV/min⁻¹
Torque constant	k_M	6.25 mNm/A
Current constant	k_I	0.16 A/mNm
Slope of n-M curve	Δn/ΔM	7950 min⁻¹/mNm
Rotor inductance	L	229 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.42 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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	60.5 Ω
Efficiency, max.	η_max.	53 %
No-load speed	n₀	12800 min⁻¹
No-load current	I₀	0.0145 A
Stall torque	M_H	1.53 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1150 min⁻¹/V
Back-EMF constant	k_E	0.865 mV/min⁻¹
Torque constant	k_M	8.33 mNm/A
Current constant	k_I	0.121 A/mNm
Slope of n-M curve	Δn/ΔM	8330 min⁻¹/mNm
Rotor inductance	L	406 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	39 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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	14.1 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	13000 min⁻¹
No-load current	I₀	0.0294 A
Stall torque	M_H	1.63 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	2320 min⁻¹/V
Back-EMF constant	k_E	0.434 mV/min⁻¹
Torque constant	k_M	4.12 mNm/A
Current constant	k_I	0.241 A/mNm
Slope of n-M curve	Δn/ΔM	7970 min⁻¹/mNm
Rotor inductance	L	99.1 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	9 V
Terminal resistance	R	32.5 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	12900 min⁻¹
No-load current	I₀	0.0193 A
Stall torque	M_H	1.61 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1530 min⁻¹/V
Back-EMF constant	k_E	0.655 mV/min⁻¹
Torque constant	k_M	6.25 mNm/A
Current constant	k_I	0.16 A/mNm
Slope of n-M curve	Δn/ΔM	7950 min⁻¹/mNm
Rotor inductance	L	229 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.42 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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	60.5 Ω
Efficiency, max.	η_max.	53 %
No-load speed	n₀	12800 min⁻¹
No-load current	I₀	0.0145 A
Stall torque	M_H	1.53 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1150 min⁻¹/V
Back-EMF constant	k_E	0.865 mV/min⁻¹
Torque constant	k_M	8.33 mNm/A
Current constant	k_I	0.121 A/mNm
Slope of n-M curve	Δn/ΔM	8330 min⁻¹/mNm
Rotor inductance	L	406 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	39 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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	14.1 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	13000 min⁻¹
No-load current	I₀	0.0294 A
Stall torque	M_H	1.63 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	2320 min⁻¹/V
Back-EMF constant	k_E	0.434 mV/min⁻¹
Torque constant	k_M	4.12 mNm/A
Current constant	k_I	0.241 A/mNm
Slope of n-M curve	Δn/ΔM	7970 min⁻¹/mNm
Rotor inductance	L	99.1 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	9 V
Terminal resistance	R	32.5 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	12900 min⁻¹
No-load current	I₀	0.0193 A
Stall torque	M_H	1.61 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1530 min⁻¹/V
Back-EMF constant	k_E	0.655 mV/min⁻¹
Torque constant	k_M	6.25 mNm/A
Current constant	k_I	0.16 A/mNm
Slope of n-M curve	Δn/ΔM	7950 min⁻¹/mNm
Rotor inductance	L	229 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.42 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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	60.5 Ω
Efficiency, max.	η_max.	53 %
No-load speed	n₀	12800 min⁻¹
No-load current	I₀	0.0145 A
Stall torque	M_H	1.53 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1150 min⁻¹/V
Back-EMF constant	k_E	0.865 mV/min⁻¹
Torque constant	k_M	8.33 mNm/A
Current constant	k_I	0.121 A/mNm
Slope of n-M curve	Δn/ΔM	8330 min⁻¹/mNm
Rotor inductance	L	406 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	39 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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	14.1 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	13000 min⁻¹
No-load current	I₀	0.0294 A
Stall torque	M_H	1.63 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	2320 min⁻¹/V
Back-EMF constant	k_E	0.434 mV/min⁻¹
Torque constant	k_M	4.12 mNm/A
Current constant	k_I	0.241 A/mNm
Slope of n-M curve	Δn/ΔM	7970 min⁻¹/mNm
Rotor inductance	L	99.1 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	9 V
Terminal resistance	R	32.5 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	12900 min⁻¹
No-load current	I₀	0.0193 A
Stall torque	M_H	1.61 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1530 min⁻¹/V
Back-EMF constant	k_E	0.655 mV/min⁻¹
Torque constant	k_M	6.25 mNm/A
Current constant	k_I	0.16 A/mNm
Slope of n-M curve	Δn/ΔM	7950 min⁻¹/mNm
Rotor inductance	L	229 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.42 gcm²
Angular acceleration	α_max.	38 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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	60.5 Ω
Efficiency, max.	η_max.	53 %
No-load speed	n₀	12800 min⁻¹
No-load current	I₀	0.0145 A
Stall torque	M_H	1.53 mNm
Friction torque	M_R	0.12 mNm
Speed constant	k_n	1150 min⁻¹/V
Back-EMF constant	k_E	0.865 mV/min⁻¹
Torque constant	k_M	8.33 mNm/A
Current constant	k_I	0.121 A/mNm
Slope of n-M curve	Δn/ΔM	8330 min⁻¹/mNm
Rotor inductance	L	406 µH
Mechanical time constant	τ_m	35 ms
Rotor inertia	J	0.4 gcm²
Angular acceleration	α_max.	39 ·10³rad/s²
Thermal resistance	R_th1/R_th2	15 / 42.42 K/W
Thermal time constant	τ_w1/τ_w2	4.8 / 238.4 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, nickel plated
Mass		13 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	15000 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