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STN020 Series
● 2-Phase Hybrid Stepper Motor
● Step Angle: 1.8°
● Standard NEMA 8 Dimensions, 20x20mm
● High Torque, High Precision, High Efficiency, High Reliability
● Small Size, Smooth Movement, Low Inertia
▍Specification and Order Code
2-Phase, Unipolar (6 Leads):
| Model Name | Step Angle | Current | Resistance | Inductance | Holding Torque | Motor Length | Inertia | Mass Weight | |
| Single Shaft | Dual Shaft | Deg. | A/Phase | Ω / phase | mH / Phase | N.cm (kgf.cm) | mm | X10-7Kg.m2 | kg |
| STN020-2N-346-050S | STN020-2N-346-050D | 1.8° | 0.5 | 6.6 | 1.2 | 1.3 (0.13) | 34 | 1.9 | 0.06 |
| STN020-2N-406-050S | STN020-2N-406-050D | 1.8° | 0.5 | 8 | 1.4 | 1.9 (0.19) | 40 | 3.2 | 0.08 |
● Environmental conditions: -20 ~ +50℃
● Insulation resistance: 100MΩ Min（at DC500V）
● Permissible temperature rise: 80℃ Max（Resistance method）
★ Note: Do not allow the surface temperature of the motor case to exceed 90℃ during operation.
★ Size and electrical parameters can be customized
★ Optional items: Encoder & Brakes can be chosen and installed
2-Phase, Bipolar (4 Leads):
| Model Name | Step Angle | Current | Resistance | Inductance | Holding Torque | Motor Length | Inertia | Mass Weight | |
| Single Shaft | Dual Shaft | Deg. | A/Phase | Ω / phase | mH / Phase | N.cm (kgf.cm) | mm | X10-7Kg.m2 | kg |
| STN020-2N-344-060S | STN020-2N-344-060D | 1.8° | 0.6 | 4.5 | 1.2 | 1.8 (0.13) | 34 | 1.9 | 0.06 |
| STN020-2N-404-050S | STN020-2N-404-050D | 1.8° | 0.5 | 5.6 | 1.9 | 2.6 (0.19) | 40 | 3.2 | 0.08 |
● Environmental conditions: -20 ~ +50℃
● Insulation resistance: 100MΩ Min（at DC500V）
● Permissible temperature rise: 80℃ Max（Resistance method）
★ Note: Do not allow the surface temperature of the motor case to exceed 90℃ during operation.
★ Size and electrical parameters can be customized
★ Optional items: Encoder & Brakes can be chosen and installed
▍Wiring Diagram
2-Phase, Unipolar (6 Leads)
2-Phase, Bipolar (4 Leads)
▍Dimension
