| Characteristics | 1221N5M2B26-79-3.3 | 1221N5M2B27-120-6.0 | 1221N5M2B43-141-12.0 |
|---|---|---|---|
| Voltage | 3.3 V | 6.0 V | 12.0 V |
| Terminal resistance | 6.9 Ω | 5.2 Ω | 17.9 Ω |
| No-load speed | 7900 rpm | 12000 rpm | 14100 rpm |
| No-load current | 14 mA | 30 mA | 8 mA |
| Stall torque | 1.8 mNm | 5.2 mNm | 5.3 mNm |
| Stall current | 480 mA | 1150 mA | 670 mA |
| Nominal torque | 0.4 mNm | 2.3 mNm | 2.1 mNm |
| Nominal speed | 6370 rpm | 6700 rpm | 8530 rpm |
| Nominal current | 100 mA | 520 mA | 270 mA |
| Max. output power | 0.37 W | 1.64 W | 1.96 W |
| Max. efficiency | 69 % | 70 % | 79 % |
| Back-EMF constant | 0.4 mV/rpm | 0.5 mV/rpm | 0.8 mV/rpm |
| Torque constant | 3.9 mNm/A | 4.7 mNm/A | 8.0 mNm/A |
| Speed/torque gradient | 4400 rpm/mNm | 2300 rpm/mNm | 2700 rpm/mNm |
| Rotor inertia | 0.15 g·cm² | 0.15 g·cm² | 0.15 g·cm² |
| Weight | 10 g | 10 g | 10 g |
| Thermal resistance housing-ambient | 33.3 K/W | 33.3 K/W | 33.3 K/W |
| Thermal resistance winding-housing | 35.3 K/W | 35.3 K/W | 35.3 K/W |
| Thermal time constant motor | 144 s | 144 s | 144 s |
| Thermal time constant winding | 120 s | 120 s | 120 s |
| Operating temperature range | -20~+85 | -20~+85 | -20~+85 |
| Thermal class of winding | 130 °C | 130 °C | 130 °C |
| Axial play | 0.02~0.15 | 0.02~0.15 | 0.02~0.15 |
| Radial play | 0.025 mm | 0.025 mm | 0.025 mm |
| Axial load dynamic | 0.8 N | 0.8 N | 0.8 N |
| Axial load static | 30 N | 30 N | 30 N |
| Radial load at 3 mm from mounting face | 4 N | 4 N | 4 N |
| No. of pole pairs | 1 | 1 | 1 |
| Bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings |
| Commutator | metal 5 segments | metal 5 segments | metal 5 segments |
| Protection class | 40 IP | 40 IP | 40 IP |
Applications
medical equipment and devices
healthcare products
automotive
robotics
industrial automation
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
1221N5M2B
| Specification | 1221N5M2B26-79-3.3 |
|---|---|
| Voltage | 3.3 V |
| Terminal resistance | 6.9 Ω |
| No-load speed | 7900 rpm |
| No-load current | 14 mA |
| Stall torque | 1.8 mNm |
| Stall current | 480 mA |
| Nominal torque | 0.4 mNm |
| Nominal speed | 6370 rpm |
| Nominal current | 100 mA |
| Max. output power | 0.37 W |
| Max. efficiency | 69 % |
| Back-EMF constant | 0.4 mV/rpm |
| Torque constant | 3.9 mNm/A |
| Speed/torque gradient | 4400 rpm/mNm |
| Rotor inertia | 0.15 g·cm² |
| Weight | 10 g |
| Thermal resistance housing-ambient | 33.3 K/W |
| Thermal resistance winding-housing | 35.3 K/W |
| Thermal time constant motor | 144 s |
| Thermal time constant winding | 120 s |
| Operating temperature range | -20~+85 °C |
| Thermal class of winding | 130 °C |
| Axial play | 0.02~0.15 mm |
| Radial play | 0.025 mm |
| Axial load dynamic | 0.8 N |
| Axial load static | 30 N |
| Radial load at 3 mm from mounting face | 4 N |
| No. of pole pairs | 1 |
| Bearings | 2 ball bearings |
| Commutator | metal 5 segments |
| Protection class | 40 IP |
Applications
medical equipment and devices
healthcare products
automotive
robotics
industrial automation
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
1221N5M2B
| Specification | 1221N5M2B27-120-6.0 |
|---|---|
| Voltage | 6.0 V |
| Terminal resistance | 5.2 Ω |
| No-load speed | 12000 rpm |
| No-load current | 30 mA |
| Stall torque | 5.2 mNm |
| Stall current | 1150 mA |
| Nominal torque | 2.3 mNm |
| Nominal speed | 6700 rpm |
| Nominal current | 520 mA |
| Max. output power | 1.64 W |
| Max. efficiency | 70 % |
| Back-EMF constant | 0.5 mV/rpm |
| Torque constant | 4.7 mNm/A |
| Speed/torque gradient | 2300 rpm/mNm |
| Rotor inertia | 0.15 g·cm² |
| Weight | 10 g |
| Thermal resistance housing-ambient | 33.3 K/W |
| Thermal resistance winding-housing | 35.3 K/W |
| Thermal time constant motor | 144 s |
| Thermal time constant winding | 120 s |
| Operating temperature range | -20~+85 °C |
| Thermal class of winding | 130 °C |
| Axial play | 0.02~0.15 mm |
| Radial play | 0.025 mm |
| Axial load dynamic | 0.8 N |
| Axial load static | 30 N |
| Radial load at 3 mm from mounting face | 4 N |
| No. of pole pairs | 1 |
| Bearings | 2 ball bearings |
| Commutator | metal 5 segments |
| Protection class | 40 IP |
Applications
medical equipment and devices
healthcare products
automotive
robotics
industrial automation
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
1221N5M2B
| Specification | 1221N5M2B43-141-12.0 |
|---|---|
| Voltage | 12.0 V |
| Terminal resistance | 17.9 Ω |
| No-load speed | 14100 rpm |
| No-load current | 8 mA |
| Stall torque | 5.3 mNm |
| Stall current | 670 mA |
| Nominal torque | 2.1 mNm |
| Nominal speed | 8530 rpm |
| Nominal current | 270 mA |
| Max. output power | 1.96 W |
| Max. efficiency | 79 % |
| Back-EMF constant | 0.8 mV/rpm |
| Torque constant | 8.0 mNm/A |
| Speed/torque gradient | 2700 rpm/mNm |
| Rotor inertia | 0.15 g·cm² |
| Weight | 10 g |
| Thermal resistance housing-ambient | 33.3 K/W |
| Thermal resistance winding-housing | 35.3 K/W |
| Thermal time constant motor | 144 s |
| Thermal time constant winding | 120 s |
| Operating temperature range | -20~+85 °C |
| Thermal class of winding | 130 °C |
| Axial play | 0.02~0.15 mm |
| Radial play | 0.025 mm |
| Axial load dynamic | 0.8 N |
| Axial load static | 30 N |
| Radial load at 3 mm from mounting face | 4 N |
| No. of pole pairs | 1 |
| Bearings | 2 ball bearings |
| Commutator | metal 5 segments |
| Protection class | 40 IP |
Applications
medical equipment and devices
healthcare products
automotive
robotics
industrial automation
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.