NEMA 16 Stepper Motor 39BYGH40
The 39BYGH40 is a two-phase hybrid stepper motor in the NEMA 16 frame (39 × 39 mm flange), featuring a compact 40 mm body and 1.8° (200 steps per revolution) resolution. It is available in bipolar configuration with rated current 0.3 A – 0.4 A per phase, phase resistance 30 Ω – 40 Ω, and holding torque between 0.11 Nm – 0.21 Nm. Phase inductance ranges from 20 mH – 45 mH, and rotor inertia spans 20 g·cm² – 32 g·cm², depending on the specific model. The motor uses a 5 mm round shaft, offers insulation resistance of ≥ 100 MΩ at 500 VDC, dielectric strength of 500 VAC for 1 min, temperature rise up to 80 °C, and supports ambient operation from –20 °C to +50 °C.
Features
- 1.8° (200 steps/rev) step angle with ±5 % accuracy.
- Bipolar, 2‑phase wiring suitable for standard stepper drivers.
- Rated current 0.3 A – 0.4 A per phase.
- Phase resistance 30 Ω – 40 Ω.
- Holding torque 0.11 Nm – 0.21 Nm.
- Phase inductance 20 mH – 45 mH.
- Rotor inertia 20 g·cm² – 32 g·cm².
- 5 mm shaft for compact coupling.
- High insulation (>100 MΩ @ 500 VDC) and dielectric strength (500 VAC / 1 min).
- Capable of continuous operation with ≤ 80 °C rise; ambient range –20 °C to +50 °C.
Specifications
| Parameter | Value |
|---|---|
| Model | 39BYGH40 (NEMA 16) |
| Step Angle | 1.8° (200 steps/rev) |
| Step Accuracy | ±5 % |
| Phases | 2 (bipolar, 4‑wire) |
| Rated Current | 0.3 A – 0.4 A/Phase |
| Phase Resistance | 30 Ω – 40 Ω |
| Resistance Accuracy | ±10 % (typical) |
| Insulation Resistance | ≥100 MΩ@500 VDC |
| Phase Inductance | 20 mH – 45 mH |
| Inductance Accuracy | ±20 % (typical) |
| Holding Torque | 0.11 Nm – 0.21 Nm |
| Detent Torque | 0.11 Nm – 0.21 Nm |
| Rotor Inertia | 20 g·cm² – 32 g·cm² |
| Temperature Rise | ≤80 °C |
| Ambient Temperature Range | –20 °C – +50 °C |
| Storage Temperature Range | –20 °C – +70 °C |
| Dielectric Strength | 500 VAC for 1 min |
| Number of Leads | 4 |
| Motor Length | 40 mm |
| Shaft Diameter | 5 mm round |
Applications
- Small robotics and compact actuator systems.
- Precision positioning in measurement and control devices.
- Light-duty conveyor and pick‑and‑place mechanisms.
- Educational kits and automated instrument axes.
- Camera gimbals and imaging platforms.
Package Contents
- 1x NEMA 16 Stepper Motor 39BYGH40.
- Integrate 30cm 4-wires Cable.
