BY PM Stepper Motor 15BY25-559B

BY PM Stepper Motor 15BY25-559B is engineered for applications requiring compact size, moderate torque, and high-speed operation at low voltage. The motor adopts a 2-phase permanent magnet structure with a 2–2 exciting method and an 18° step angle, enabling efficient stepping behavior and simple control.

Key electrical and mechanical characteristics include:

• Rated Voltage: 5 VDC
• Rated Torque: 13 gf·cm
• Phase: 2
• Exciting Method: 2–2
• Step Angle: 18°
• No-load Speed: 2400 RPM
• Phase Resistance: 10 Ω
• Dielectric Strength: 500 VDC
• No-load Pull-out Frequency: ≥ 1500 Hz
• No-load Pull-in Frequency: ≥ 1100 Hz
• Temperature Rise: 115 °C
• Insulation Class: E
• Noise Level: ≤ 50 dB
• Operating Temperature: −10 °C to +50 °C
• Outer Diameter: 15 mm
• Height: 10.3 mm
• Weight: 9 g

The 15BY25-559B is well suited for compact systems where low-voltage operation, high speed, and lightweight construction are required.