The 28BYJ-48 Stepper Motor DC 5V is a compact, low-cost unipolar gear stepper motor designed for precision positional control, small automated mechanisms, and microcontroller prototyping. 5V DC nominal.
The 28BYJ-48 Stepper Motor DC 5V is a compact, low-cost unipolar gear stepper motor designed for precision positional control, small automated mechanisms, and microcontroller prototyping. Equipped with an internal gear reduction train with a ratio of approximately 1/64 (or 63.6839:1), it translates high-speed internal motor steps into high output torque at reduced rotational speeds.
Operating on a nominal supply voltage of 5V DC, it features 4-phase coil windings connected in a 5-wire unipolar configuration. Driven in half-step mode (8 step sequence), it offers 4096 steps per full output shaft revolution, equivalent to a precise step angle of approximately 0.0878°. In full-step mode (4 step sequence), it provides 2048 steps per revolution (0.1757° per step).
The motor comes with a standard 5-pin 2.54mm pitch connector that interfaces directly with ULN2003 transistor driver boards. Its compact cylindrical metal body includes integrated mounting tabs and a flattened D-profile output shaft (5mm diameter) for non-slip mechanical attachment, making it an optimal choice for driving small valves, pan-tilt heads, and motorized dials using Arduino, ESP32, or Raspberry Pi.
| Motor Type | 4-Phase 5-Wire Unipolar Geared Stepper Motor |
|---|---|
| Operating Voltage | 5V DC nominal |
| Gear Reduction Ratio | 1/64 internal reduction gear train |
| Stride Step Angle | 5.625° / 64 (≈ 0.0878° per step in half-step mode) |
| Steps Per Revolution | 4096 steps/rev (half-step mode) / 2048 steps/rev (full-step mode) |
| DC Resistance | 50Ω ± 7% per coil phase |
| Pull-in Torque | > 300 g-cm (@ 100Hz) |
| Detent / Holding Torque | > 34.3 mN.m (≈ 350 g-cm) |
| Connector Type | 5-Pin JST/XH 2.54mm pitch color-coded connector (Blue, Pink, Yellow, Orange = Phases; Red = Common V_CC) |
| Noise Level | < 35 dB quiet operating sound profile |
What is the operating voltage?
5V DC nominal.
Is it compatible with Arduino and ESP32?
Yes. It works with Arduino, ESP32, Raspberry Pi projects.
Can I buy the 28BYJ-48 Stepper Motor DC 5V in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
