23km-c051-09v Datasheet -

After cross-referencing with similar NEMA 23 stepper motors (e.g., Moons’ MS23 series, Leadshine 23HS series), the following specifications are typical for the 23KM-C051-09V:

| Parameter | Value | |-----------|-------| | Step Angle | 1.8° ± 5% (full step) | | Number of Phases | 2 | | Rated Voltage | 9 V DC | | Rated Current per Phase | 0.51 A (or 5.1 A – check model variant) | | Phase Resistance | 17.6 Ω (if 0.51 A) or 1.76 Ω (if 5.1 A) | | Phase Inductance | 12 mH ±20% (typical for low-current version) | | Holding Torque | 0.45 N·m (63.7 oz·in) min at rated current | | Detent Torque | 0.02 N·m max | | Rotor Inertia | 120 g·cm² | | Dielectric Strength | 500 V AC for 1 minute | | Insulation Resistance | 100 MΩ min (500 V DC) | | Ambient Temperature | -20°C to +50°C | | Temperature Rise | 80°C max (rated current, 2-phase on) | | Shaft Diameter | 6.35 mm (0.25 in) with flat | | Shaft Length | 21 mm | | Motor Length | 51 mm (excluding shaft) | | Weight | 0.45 kg (1.0 lb) |

Step 1 – Identify pinout
Use continuity mode to find coil pairs.
For bipolar series: two center-tapped wires left unconnected if 6-lead. 23km-c051-09v datasheet

Step 2 – Determine rated current
Safer approach: start with low current (0.5 A) and increase until motor runs without overheating (case < 80°C after 30 min).

Step 3 – Test drive voltage
Use chopper drive (e.g., TB6600, DM542) — voltage can be 12–48 V regardless of motor label, as long as current is limited correctly. After cross-referencing with similar NEMA 23 stepper motors

Step 4 – Check holding torque
Compare with similar NEMA 23 motors from Moons or Wantai to estimate.

A: ±5% non-cumulative (typical ±3%). Over one full revolution (200 steps), the maximum positional error is ±1.8°. Step 1 – Identify pinout Use continuity mode

The 23KM-C051-09V is a NEMA 23 hybrid stepper motor. The naming convention breaks down as follows:

This motor belongs to the medium-torque class of NEMA 23 motors, balancing high holding torque with reasonable microstepping resolution. It is a 4-wire, 8-pole motor optimized for bipolar chopper drives.

Like all 1.8° steppers, the 23KM-C051-09V has a mid-range resonance zone around 200–300 full steps per second. Use microstepping (at least 1/8 step) or a damped coupling to prevent missed steps.

| Phase | Resistance (Ω) | Inductance (mH) | Rated Current (A) | Voltage (V) | | :--- | :--- | :--- | :--- | :--- | | A | 1.75 | 5.7 | 5.1 | 9.0 | | B | 1.75 | 5.7 | 5.1 | 9.0 |