The 1331N5M series is a high-performance 13mm micro DC coreless motor with precious metal commutation. Engineered for precision, it delivers exceptional reliability and efficiency for demanding applications in medical devices, healthcare products, robotics, and industrial automation. Customization options include various lead wire lengths, shaft lengths, special coil configurations, and gear head integration.
| Parameter | Unit | 1331N5M02-40-4.5 | 1331N5M01-67-9.0 | 1331N5M09-87-12.0 |
|---|---|---|---|---|
| Voltage | V | 4.5 | 9.0 | 12.0 |
| Terminal resistance | Ω | 9.9 | 17.7 | 15.7 |
| No-load speed | rpm | 4000 | 6700 | 8700 |
| No-load current | mA | 5 | 7 | 10 |
| Stall torque | mNm | 4.7 | 6.4 | 9.7 |
| Stall current | mA | 450 | 510 | 760 |
| Nominal torque | mNm | 1 | 1 | 2 |
| Nominal speed | rpm | 3150 | 5650 | 6920 |
| Nominal current | mA | 100 | 90 | 160 |
| Max. output power | W | 0.5 | 1.12 | 2.22 |
| Max. efficiency | % | 80 | 78 | 78 |
| Back-EMF constant | mV/rpm | 1.1 | 1.3 | 1.4 |
| Torque constant | mNm/A | 10.6 | 12.7 | 13 |
| Speed/torque gradient | rpm/mNm | 800 | 1100 | 900 |
| Rotor inertia | gcm² | 0.52 | 0.52 | 0.52 |
| Weight | g | 20 | 20 | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 | 34.8 | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 | 38.6 | 38.6 |
| Thermal time constant motor | s | 211 | 211 | 211 |
| Thermal time constant winding | s | 163 | 163 | 163 |
| Operating temperature range | °C | -20~+85 | -20~+85 | -20~+85 |
| Thermal class of winding | °C | 130 | 130 | 130 |
| Axial play | mm | 0.02~0.15 | 0.02~0.15 | 0.02~0.15 |
| Radial play | mm | 0.014 | 0.014 | 0.014 |
| Axial load dynamic | N | 0.8 | 0.8 | 0.8 |
| Axial load static | N | 30 | 30 | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 | 1.4 | 1.4 |
| No. of pole pairs | 1 | 1 | 1 | |
| Bearings | 2 sleeve bearings | 2 sleeve bearings | 2 sleeve bearings | |
| Commutator | metal 5 segments | metal 5 segments | metal 5 segments | |
| Protection class | IP | 30 | 30 | 30 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 1331N5M02-40-4.5 |
|---|---|---|
| Voltage | V | 4.5 |
| Terminal resistance | Ω | 9.9 |
| No-load speed | rpm | 4000 |
| No-load current | mA | 5 |
| Stall torque | mNm | 4.7 |
| Stall current | mA | 450 |
| Nominal torque | mNm | 1 |
| Nominal speed | rpm | 3150 |
| Nominal current | mA | 100 |
| Max. output power | W | 0.5 |
| Max. efficiency | % | 80 |
| Back-EMF constant | mV/rpm | 1.1 |
| Torque constant | mNm/A | 10.6 |
| Speed/torque gradient | rpm/mNm | 800 |
| Rotor inertia | gcm² | 0.52 |
| Weight | g | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 |
| Thermal time constant motor | s | 211 |
| Thermal time constant winding | s | 163 |
| Operating temperature range | °C | -20~+85 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.02~0.15 |
| Radial play | mm | 0.014 |
| Axial load dynamic | N | 0.8 |
| Axial load static | N | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 |
| No. of pole pairs | 1 | |
| Bearings | 2 sleeve bearings | |
| Commutator | metal 5 segments | |
| Protection class | IP | 30 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 1331N5M01-67-9.0 |
|---|---|---|
| Voltage | V | 9.0 |
| Terminal resistance | Ω | 17.7 |
| No-load speed | rpm | 6700 |
| No-load current | mA | 7 |
| Stall torque | mNm | 6.4 |
| Stall current | mA | 510 |
| Nominal torque | mNm | 1 |
| Nominal speed | rpm | 5650 |
| Nominal current | mA | 90 |
| Max. output power | W | 1.12 |
| Max. efficiency | % | 78 |
| Back-EMF constant | mV/rpm | 1.3 |
| Torque constant | mNm/A | 12.7 |
| Speed/torque gradient | rpm/mNm | 1100 |
| Rotor inertia | gcm² | 0.52 |
| Weight | g | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 |
| Thermal time constant motor | s | 211 |
| Thermal time constant winding | s | 163 |
| Operating temperature range | °C | -20~+85 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.02~0.15 |
| Radial play | mm | 0.014 |
| Axial load dynamic | N | 0.8 |
| Axial load static | N | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 |
| No. of pole pairs | 1 | |
| Bearings | 2 sleeve bearings | |
| Commutator | metal 5 segments | |
| Protection class | IP | 30 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 1331N5M09-87-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 15.7 |
| No-load speed | rpm | 8700 |
| No-load current | mA | 10 |
| Stall torque | mNm | 9.7 |
| Stall current | mA | 760 |
| Nominal torque | mNm | 2 |
| Nominal speed | rpm | 6920 |
| Nominal current | mA | 160 |
| Max. output power | W | 2.22 |
| Max. efficiency | % | 78 |
| Back-EMF constant | mV/rpm | 1.4 |
| Torque constant | mNm/A | 13 |
| Speed/torque gradient | rpm/mNm | 900 |
| Rotor inertia | gcm² | 0.52 |
| Weight | g | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 |
| Thermal time constant motor | s | 211 |
| Thermal time constant winding | s | 163 |
| Operating temperature range | °C | -20~+85 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.02~0.15 |
| Radial play | mm | 0.014 |
| Axial load dynamic | N | 0.8 |
| Axial load static | N | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 |
| No. of pole pairs | 1 | |
| Bearings | 2 sleeve bearings | |
| Commutator | metal 5 segments | |
| Protection class | IP | 30 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
