| Price | $2.50 |
|---|---|
| Category | Actuators & Drivers |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
The little blue geared stepper from every Arduino tutorial. A 4-phase unipolar motor with a 1/64 reduction gearbox, so its 5.625 degree internal step becomes about 2048 full steps per turn of the output shaft - slow, but very fine, and it holds position without any extra trickery. Rated 5V DC with 50 ohm per phase and over 34 mN·m of holding torque. Pair it with the ULN2003 driver board we stock and four microcontroller pins.
Key features
- 4-phase unipolar, 5-wire, rated 5V DC
- 5.625 degree stride angle through a 1/64 gearbox
- ~2048 full steps (4096 half-steps) per output turn
- 50 ohm ±7% per phase, over 34.3 mN·m holding torque
- Ø28 mm body, Ø5 mm flatted shaft, 5-pin plug
- Plugs straight into the ULN2003 (ZC-A0591) driver board
Details
Specifications
| Model | 28BYJ-48 |
|---|---|
| Type | 4-phase unipolar geared stepper |
| Rated voltage | 5V DC |
| Phases | 4 (5-wire unipolar) |
| Step angle | 5.625 degrees before gearing |
| Gear ratio | 1/64 (nominal) |
| Steps per revolution | ~2048 full / 4096 half |
| Coil resistance | 50 ohm ±7% at 25 degrees C |
| Holding torque | over 34.3 mN·m |
| Pull-in torque | 300 gf·cm |
| Idle in-traction frequency | over 600 Hz |
| Body size | Ø28 mm |
| Output shaft | Ø5 mm, flatted |
| Driver | ULN2003 board (ZC-A0591) |
