103H6501-7041 Sanyo Denki
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The Sanyo Denki 103H6501-7041 is a stepping motor from the StepSyn Stepping Motors series with a step angle of 0.72 degrees per step and a holding torque of 0.39 Newton-meters. It features a 50 mm square flange size, 6 mm shaft diameter, and weighs 0.44 kilograms. The motor has a five-phase configuration, a rated current of 0.75 Amps per phase, and wiring resistance of 2.6 Ohms per phase.
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Product Description:
The 103H6501-7041 stepping motor is produced by Sanyo Denki and belongs to the StepSyn Stepping Motors series. It converts discrete pulse commands from a controller into incremental rotary motion, allowing compact actuators, small conveyors, and optical stages to position loads without closed-loop feedback. Its design fits standard metric mounting patterns, allowing repeatable step control to be integrated into space-constrained industrial assemblies. The motor is suitable for applications that require controlled incremental movement and consistent positioning without an encoder.
The motor has a step angle of 0.72° per step, providing 500 full steps per revolution before electronic microstepping is applied by a compatible driver. Torque ripple and resonance are minimized by its 5-phase winding topology, which spaces commutation events evenly around the rotor. Each phase draws 0.75 A, making the motor compatible with appropriately rated low-power microstep drives. Each phase has an inductance of 5.6 mH, which affects how quickly winding current rises in response to a drive command. The coil resistance is 2.6 Ω per phase, contributing to winding voltage drop and copper losses during operation. These electrical characteristics influence the available torque as pulse frequency increases and current has less time to reach its commanded level.
The motor provides a holding torque of 0.39 N·m, supporting indexers and laboratory automation axes that handle light loads. Its square flange measures 50 mm per side and includes four 4.5 mm through-holes on a 41 mm pitch for attachment to compact gearheads or mounting brackets. The motor has a mass of 0.44 kg, while its rotor inertia is 0.105 × 10⁻⁴ kg·m² to support responsive acceleration. Power is delivered through AWG24 flying leads, allowing direct wiring to a compatible stepping motor driver. Output torque is transmitted through a machined shaft with a diameter of 6 mm. The shaft extends 20.6 mm beyond the front face and is supported by a 36 mm pilot that helps maintain concentric alignment in small-frame machinery.
