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| Characteristics | B1220N2B03-230-7.4 | B1220N2B02-172-6.0 | B1220N2B01-175-5.0 |
|---|---|---|---|
| Voltage | 7.4 V | 6.0 V | 5.0 V |
| Terminal resistance | 3.8 Ω | 3.4 Ω | 2 Ω |
| No-load speed | 23000 rpm | 17200 rpm | 17500 rpm |
| No-load current | 0.1 A | 0.15 A | 0.18 A |
| Stall torque | 5.3 mNm | 4.9 mNm | 5.8 mNm |
| Stall current | 2 A | 1.8 A | 2.5 A |
| Nominal torque | 1.3 mNm | 1.3 mNm | 1.4 mNm |
| Nominal speed | 15300 rpm | 10800 rpm | 11600 rpm |
| Nominal current | 0.57 A | 0.6 A | 0.78 A |
| Max. output power | 3.3 W | 2.2 W | 2.5 W |
| Max. efficiency | 62 % | 50 % | 51 % |
| Back-EMF constant | 0.3 mV/rpm | 0.3 mV/rpm | 0.3 mV/rpm |
| Torque constant | 2.9 mNm/A | 3.0 mNm/A | 2.5 mNm/A |
| KV Value | 3100 rpm/V | 2900 rpm/V | 3500 rpm/V |
| Speed/torque gradient | 3800 rpm/mNm | 3700 rpm/mNm | 3030 rpm/mNm |
| Rotor inertia | 0.17 gcm² | 0.17 gcm² | 0.17 gcm² |
| Weight | 9.5 g | 9.5 g | 9.5 g |
| Thermal resistance housing-ambient | 32 K/W | 32 K/W | 32 K/W |
| Thermal resistance winding-housing | 5.5 K/W | 5.5 K/W | 5.5 K/W |
| Thermal time constant motor | 190 s | 190 s | 190 s |
| Thermal time constant winding | 1.5 s | 1.5 s | 1.5 s |
| Operating temperature range | -40~+100 | -40~+100 | -40~+100 |
| Thermal class of winding | 155 °C | 155 °C | 155 °C |
| Axial play | 0.012 mm | 0.012 mm | 0.012 mm |
| Radial play | 0.008 mm | 0.008 mm | 0.008 mm |
| Axial load dynamic | 1 N | 1 N | 1 N |
| Axial load static | 25 N | 25 N | 25 N |
| Radial load at 3 mm from mounting face | 6.3 N | 6.3 N | 6.3 N |
| No. of pole pairs | 1 | 1 | 1 |
| Bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings |
| Protection class | 20 IP | 20 IP | 20 IP |
| Commutation | Sensorless | Sensorless | Sensorless |
Applications
| Specification | B1220N2B03-230-7.4 |
|---|---|
| Voltage | 7.4 V |
| Terminal resistance | 3.8 Ω |
| No-load speed | 23000 rpm |
| No-load current | 0.1 A |
| Stall torque | 5.3 mNm |
| Stall current | 2 A |
| Nominal torque | 1.3 mNm |
| Nominal speed | 15300 rpm |
| Nominal current | 0.57 A |
| Max. output power | 3.3 W |
| Max. efficiency | 62 % |
| Back-EMF constant | 0.3 mV/rpm |
| Torque constant | 2.9 mNm/A |
| KV Value | 3100 rpm/V |
| Speed/torque gradient | 3800 rpm/mNm |
| Rotor inertia | 0.17 gcm² |
| Weight | 9.5 g |
| Thermal resistance housing-ambient | 32 K/W |
| Thermal resistance winding-housing | 5.5 K/W |
| Thermal time constant motor | 190 s |
| Thermal time constant winding | 1.5 s |
| Operating temperature range | -40~+100 °C |
| Thermal class of winding | 155 °C |
| Axial play | 0.012 mm |
| Radial play | 0.008 mm |
| Axial load dynamic | 1 N |
| Axial load static | 25 N |
| Radial load at 3 mm from mounting face | 6.3 N |
| No. of pole pairs | 1 |
| Bearings | 2 ball bearings |
| Protection class | 20 IP |
| Commutation | Sensorless |
Applications
| Specification | B1220N2B02-172-6.0 |
|---|---|
| Voltage | 6.0 V |
| Terminal resistance | 3.4 Ω |
| No-load speed | 17200 rpm |
| No-load current | 0.15 A |
| Stall torque | 4.9 mNm |
| Stall current | 1.8 A |
| Nominal torque | 1.3 mNm |
| Nominal speed | 10800 rpm |
| Nominal current | 0.6 A |
| Max. output power | 2.2 W |
| Max. efficiency | 50 % |
| Back-EMF constant | 0.3 mV/rpm |
| Torque constant | 3.0 mNm/A |
| KV Value | 2900 rpm/V |
| Speed/torque gradient | 3700 rpm/mNm |
| Rotor inertia | 0.17 gcm² |
| Weight | 9.5 g |
| Thermal resistance housing-ambient | 32 K/W |
| Thermal resistance winding-housing | 5.5 K/W |
| Thermal time constant motor | 190 s |
| Thermal time constant winding | 1.5 s |
| Operating temperature range | -40~+100 °C |
| Thermal class of winding | 155 °C |
| Axial play | 0.012 mm |
| Radial play | 0.008 mm |
| Axial load dynamic | 1 N |
| Axial load static | 25 N |
| Radial load at 3 mm from mounting face | 6.3 N |
| No. of pole pairs | 1 |
| Bearings | 2 ball bearings |
| Protection class | 20 IP |
| Commutation | Sensorless |
Applications
| Specification | B1220N2B01-175-5.0 |
|---|---|
| Voltage | 5.0 V |
| Terminal resistance | 2 Ω |
| No-load speed | 17500 rpm |
| No-load current | 0.18 A |
| Stall torque | 5.8 mNm |
| Stall current | 2.5 A |
| Nominal torque | 1.4 mNm |
| Nominal speed | 11600 rpm |
| Nominal current | 0.78 A |
| Max. output power | 2.5 W |
| Max. efficiency | 51 % |
| Back-EMF constant | 0.3 mV/rpm |
| Torque constant | 2.5 mNm/A |
| KV Value | 3500 rpm/V |
| Speed/torque gradient | 3030 rpm/mNm |
| Rotor inertia | 0.17 gcm² |
| Weight | 9.5 g |
| Thermal resistance housing-ambient | 32 K/W |
| Thermal resistance winding-housing | 5.5 K/W |
| Thermal time constant motor | 190 s |
| Thermal time constant winding | 1.5 s |
| Operating temperature range | -40~+100 °C |
| Thermal class of winding | 155 °C |
| Axial play | 0.012 mm |
| Radial play | 0.008 mm |
| Axial load dynamic | 1 N |
| Axial load static | 25 N |
| Radial load at 3 mm from mounting face | 6.3 N |
| No. of pole pairs | 1 |
| Bearings | 2 ball bearings |
| Protection class | 20 IP |
| Commutation | Sensorless |