If you are designing a motion control system, replacing a failed unit, or sourcing alternatives, understanding the is critical for ensuring correct torque, voltage, and thermal management.
: CNC milling, robotics, printing presses, and medical imaging equipment Product Review: Minebea 23KM-C051-09V 23km-c051-09v datasheet
You can find the full 23KM series range in the Minebea Precision Step Motors Catalog . If you are designing a motion control system,
| Parameter | Value | | :--- | :--- | | | Minebea-Matsushita Motor Corporation (NMB-MAT) | | Model | 23KM-C051-09V | | Part Number | 49-207984-000A | | Motor Type | Hybrid Stepper Motor | | Frame Size | NEMA 23 (57 mm faceplate) | | Body Length | 51 mm | | Weight | approx. 675 g (0.8 kg as sold on some marketplaces) | | Phase Current | 2.0 A per phase | | Phase Resistance | 2 Ω | | Inductance | 4.4 mH | | Voltage Ratings | Rated at 4 V (armature voltage), nominal current achieved at about 2.5–3.5 V; driver supply voltage typically 12–36 V | | Holding Torque | 9.9 kg·cm (≈ 0.98 N·m / 980 mN·m) | | Step Angle | 1.8° | | Steps per Revolution | 200 | | Step Accuracy | ±5% | | Insulation Resistance | 100 MΩ minimum at 500 VDC | | Dielectric Strength | 500 VAC for 1 minute | | Max. Temperature Rise | 80°C | | Ambient Temp. Range | -20°C … +50°C | | Wiring | 6 leads (unipolar / bipolar compatible) | | Shaft Type | Round, 6.35 mm diameter (6.35 mm / 1/4”) | | Mounting | Standard NEMA 23 mounting | 675 g (0
Based on the official 23KM-C051-09V datasheet recommendations and field experience:
The is a rugged, high-torque NEMA 23 stepper motor designed for applications demanding precision and force in a compact form factor. Its key strengths—a 3.0 N·m holding torque, a 5.1A current rating, and a low 9V winding—make it ideal for bipolar chopper systems with 24-48V supplies.