Overview
The Sanyo Denki 103G770-2519 Step-Syn stepper motor is a two-phase stepping motor designed for precision positioning and motion control in industrial automation. Operating at 4.1V with a phase current of 1.1A, this motor delivers 1.8-degree step resolution (200 steps per full revolution). Though discontinued by the manufacturer, the 103G770-2519 remains a reliable workhorse in retrofit and legacy automation projects requiring accurate angular positioning without feedback.
Key Features
- 4.1 VDC per phase operating voltage
- 1.1A phase current rating
- 1.8-degree step angle (200 steps/revolution)
- Two-phase stepper motor design
- Compact form factor suitable for space-constrained applications
- Proven reliability in CNC, robotics, and industrial positioning
Technical Specifications
- Voltage: 4.1 VDC per phase
- Current: 1.1A per phase
- Step Angle: 1.8 degrees (200 steps/revolution)
- Motor Type: 2-phase stepper (Step-Syn)
- Manufacturer: Sanyo Denki
- Part Number: 103G770-2519
- Status: Discontinued by manufacturer
- Series: 103G770 family
Typical Applications
- CNC machining centers and routing equipment
- Robotic arm joint actuation and positioning
- Textile machinery indexing and fabric feed
- Medical device positioning tables
- Printing equipment platen and paper feed advancement
- Laboratory automation and sample handling systems
- Legacy industrial control retrofit and replacement
Compatibility & Replacements
Compatible With
- Two-phase stepper motor drivers and control circuits
- Standard parallel-port stepper motor interface cards
- Industrial motion control platforms supporting 4.1V stepper circuits
- CNC control boards with stepper motor output channels
- Legacy motion control systems (1990s–2000s equipment)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 103G770-2519 is a discontinued model; direct mechanical and electrical interchangeability depends on flange mounting, lead configuration, and driver circuit specifications. Related models in the 103G770 family (such as 103G770-2517 and 103G770-2511) may share similar electrical ratings but differ in mechanical mounting.
Works With
- Stepper motor driver ICs (L298N, ULN2003, etc.)
- Parallel-port CNC software (Mach3, EMC2/LinuxCNC)
- Industrial PLC stepper pulse output modules
- Arduino, Raspberry Pi, and hobby CNC control platforms
- Standard four-wire or six-wire stepper lead configurations
