Stepper Motor: Bipolar, 200 Steps/Rev, 20×42mm, 4.3V, 0.8 A/Phase

Pololu item #: 2256
Brand: SOYO
Status: Active and Preferred 
RoHS 3 compliant

Price break Unit price (US$)
1 34.95
5 32.85
25 30.88


backorders allowed

This small NEMA 8-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 800 mA at 4.3 V, allowing for a holding torque of 300 g-cm (4.2 oz-in). With a weight of 80 g, this is one of the smaller stepper motors we carry.

 Description Specs (13) Pictures (8) Resources (2) FAQs (2) On the blog (0) 

Stepper motor: bipolar, 200 steps/rev, 20×42mm, 4.3V, 800mA (SY20STH42-0804A)

SY20STH42-0804A dimension diagram.

Bipolar stepper motor wires are terminated with bare leads.

Bipolar stepper motor wiring diagram.

The inside of a bipolar stepper motor (SOYO NEMA 14-size).

Pololu’s assortment of stepper motors.

SY20STH30-0604A (left) and SY20STH42-0804A (right).

SY20STH30-0604A (top) and SY20STH42-0804A (bottom).


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