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stepper motor parameter list:
| Item | Specifications |
| Step Angle Accuracy | ±5% |
| Resistance Accuracy | ±10% |
| Inductance Accuracy | ±20% |
| Temperature Rise | 80℃ Max |
| Ambient Temperature | -20℃～+50℃ |
| Insulation Resistance | 100MΩMin.500VDC |
| Dielectric Strength | 500VAC for one minute |
| Shaft Radial Play | 0.02Max.(450g-load) |
| Shaft Axial Play | 0.08Max.(450g-load) |
| Model No | Step Angle （°） | Rated Voltage （V） | Rated Current （A） | Phase Resistance （Ω） | Phase Inductance (mH) | Holding Torque (g.cm) | Rotor Inertia (g.cm²) | Motor Length (mm) | Lead No. | Motor Weight （g） |
| 20HS28-0204 | 1.8 | 4.6 | 0.2 | 23 | 8.2 | 140 | 2.5 | 28 | 4 | 50 |
| 20HS30-0506 | 1.8 | 5.75 | 0.5 | 11.5 | 1.7 | 180 | 2.8 | 30 | 6 | 60 |
| 20HS33-0604 | 1.8 | 3.9 | 0.6 | 4.5 | 1.6 | 180 | 3.2 | 33 | 4 | 70 |
| 20HS38-0604 | 1.8 | 6 | 0.6 | 10 | 5.5 | 260 | 3.6 | 38 | 4 | 80 |
| 20HS42-0804 | 1.8 | 1.2 | 0.8 | 1.5 | 5.4 | 300 | 4 | 42 | 4 | 90 |
| Above only for representative products,products of special request can be made according to the customer request. | ||||||||||
