Bj42d15 26v10 Stepper Motor: Datasheet ((new))

VREF=Irun×8×Rsense=0.672×8×0.1≈0.54VVREF equals cap I sub run end-sub cross 8 cross cap R sub sense end-sub equals 0.672 cross 8 cross 0.1 is approximately equal to 0.54 V

Set your stepper driver's Vref current limit to 1.0A (Or 0.7A RMS if using a TMC silent driver). bj42d15 26v10 stepper motor datasheet

For a TMC2208 driver using sense resistors of (R_sense = 0.11\Omega), the required Vref for the BJ42D15-26V10 (with a peak rated current of 1.5A) is: VREF=Irun×8×Rsense=0

The BJ42D15-26V10 stepper motor is a resilient and high-precision workhorse ideally suited for 3D printers, CNC machines, and automation equipment. By thoroughly understanding its datasheet parameters—particularly the nuanced difference between rated current and peak current—and properly configuring the driver, you can significantly enhance the reliability and performance of your motion control system. | Parameter | Value | Unit | Notes

| Parameter | Value | Unit | Notes | | :--- | :--- | :--- | :--- | | | 2.6 | V DC | Per phase | | Rated Current | 1.0 | A | Per phase (Bipolar) | | Phase Resistance | 2.6 | Ω (Ohms) | At 25°C (R = V/I; 2.6/1.0 = 2.6Ω) | | Phase Inductance | 3.2 – 4.5 | mH | Typical range for this stack size | | Insulation Class | B (130°C) | - | Maximum allowable winding temperature | | Dielectric Strength | 500 | V AC | For 1 minute | | Insulation Resistance | 100 | MΩ (Min) | At 500 V DC |

In practice, when the motor is driven at its rated current, surface temperature can reach around 60.6°C under normal operation, which is well within the insulation class (typically Class B or higher) of these motors. The acceptable winding temperature under continuous operation is typically up to 80°C, but this can be confirmed by a product’s insulation rating.

The "BJ42D15-26V10" code is an internal manufacturer designation where the segments generally represent physical and electrical attributes: