Technical specifications for the SongYong SY20STH30-0604A high torque hybrid stepping motor, including electrical parameters and dimensions.
This document provides general specifications and technical data for a series of high torque hybrid stepping motors manufactured by SongYong. It covers various sizes ranging from 20mm to 130mm, featuring both 2-phase and 5-phase configurations with step angles of 1.8°, 0.9°, or 0.72°/0.36°.
The datasheet details specific electrical characteristics such as rated voltage, current per phase, resistance, inductance, holding torque, rotor inertia, and weight for multiple models within the SY series. It also includes mechanical specifications like shaft play, maximum radial and axial forces, insulation resistance, dielectric strength, and operating temperature ranges.
| Step Angle | 1.8° |
|---|---|
| Step Angle Accuracy | ± 5% (full step, no load) |
| Resistance Accuracy | ± 10% |
| Inductance Accuracy | ± 20% |
| Temperature Rise | 80° C Max. |
| Ambient Temperature | -20° C~+50° C |
| Insulation Resistance | 100MΩMin. |
| Dielectric Strength | 500VAC for one minute |
| Shaft Radial Play | 0.02Max. |
| Rated Voltage (SY20STH30-0604A) | 3.9 V |
The step angle accuracy is ±5% under full step and no load conditions.
The maximum temperature rise is 80° C when operating at rated current with two phases on.