28BYJ-48 Stepper Motor - 5V, 4-phase (high quality)

The 28BYJ-48 is a compact and affordable stepper motor operating at 5 V DC. Featuring an integrated planetary gear reduction with a ratio of 1/64, it delivers high torque at low speeds, making it suitable for applications requiring precise positioning control.

This module is commonly used in Arduino and Raspberry Pi projects to drive small mechanisms such as air conditioning louvers, simple robotic arms, or slow-axis movements. It typically requires a ULN2003 driver board to be controlled by a microcontroller.

Specifications

• Rated voltage: 5 V DC
• Number of phases: 4
• Gear reduction ratio: 1/64
• Step angle: 5.625° / 64
• DC resistance: 200 Ω ± 7% (at 25 °C)
• Idle in-step frequency: > 600 Hz
• Idle out-step frequency: > 1000 Hz
• In-step torque: > 34.3 mN·m (at 120 Hz)
• Self-positioning torque: > 34.3 mN·m
• Insulation resistance: > 10 MΩ (at 500 V)
• Withstand voltage: 600 V AC / 1 mA / 1 s
• Insulation class: A
• Rise in temperature: < 40 K (at 120 Hz)
• Noise level: < 40 dB (at 120 Hz, no load, 10 cm)