BY PM Stepper Motor 15BY25-558A

BY PM Stepper Motor 15BY25-558A is engineered for applications requiring compact size, moderate torque, and high-speed operation. The motor adopts a 2-phase permanent magnet structure with a 1–2 exciting method and an 18° step angle, providing reliable stepping behavior and efficient performance.

Key electrical and mechanical characteristics include:

• Rated Voltage: 5 VDC
• Rated Torque: 15 gf·cm
• Phase: 2
• Exciting Method: 1–2
• Step Angle: 18°
• No-load Speed: 2400 RPM
• Phase Resistance: 8.3 Ω
• Dielectric Strength: 500 VDC
• No-load Pull-out Frequency: ≥ 1500 Hz
• No-load Pull-in Frequency: ≥ 1000 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 15BY25-558A is well suited for compact devices where high speed, light load handling, and simple stepping control are required.