103H6701-0440 Sanyo Denki
Wake Industrial LLC is not an authorized distributor of this product.
The Sanyo Denki 103H6701-0440 is part of the StepSyn Stepping Motors series and features a 1.8 degree basic step angle with a holding torque of 0.28 N·m. This lead wire type motor has a motor flange size of 50 mm, a length of 39.8 mm, and a mass of 0.35 kg. It is a single shaft, unipolar motor rated at 2 A per phase, with a winding resistance of 1.1 Ohm per phase and a winding inductance of 1.6 mH per phase.
Internal Product Review
The 103H6701-0440 is a Sanyo Denki StepSyn stepping motor with a 1.8° basic step angle and 0.28 N·m holding torque. Unipolar wiring and a 2 A/phase rated current support stable drive matching and dependable positioning performance. Lead wire connection and single-shaft construction make the unit a practical choice for compact motion-control assemblies.
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Product Description:
The 103H6701-0440 is a two-phase stepping motor produced by Sanyo Denki within the StepSyn Stepping Motors series. It is intended for open-loop positioning tasks in pick-and-place heads, indexing tables, and small conveyors where repeatable incremental motion is required without feedback. The motor advances its rotor in discrete electrical steps, allowing machine controllers to translate pulse trains directly into linear or rotary displacement. This operating method supports controlled movement without requiring an encoder or other position sensor.
A basic step angle of 1.8° provides a standard resolution of 200 full steps per revolution. The rotor can sustain a holding torque of 0.28 N·m when the phases are energized, helping prevent the shaft from being back-driven at standstill. The coils draw 2 A per phase, so the selected driver must accommodate this continuous current while supporting unipolar energization. A square flange measuring 50 mm on each side provides a compact mounting interface. The rotor inertia is 0.057 × 10⁻⁴ kg·m², allowing the shaft to accelerate quickly as the pulse frequency increases. Electrical termination is provided through a lead-wire set, and the windings use a unipolar arrangement with a common center tap.
The housing has a depth of 39.8 mm, keeping the motor compact for installations with limited axial clearance. A winding resistance of 1.1 Ω per phase limits voltage drop and contributes to copper losses during continuous operation. The winding inductance is 1.6 mH per phase, which affects current rise time and the practical switching frequency during high-speed movement. The shaft bearings can accept a radial load of up to 79 N, while the permitted thrust load is 15 N. These load capacities support direct coupling to small gears or pulleys when the applied forces remain within the stated limits. The motor weighs 0.35 kg and uses a circular, single-ended output shaft. It is supplied with lead wires that can be connected to suitable terminal blocks or insulation-displacement connectors.
