Mechanical Components » Stepper Motors »

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

Pololu item #: 2256
Brand: SOYO
Status: Active and Preferred

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

Quantity:
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)

File downloads

SY20STH42-0804A stepper motor datasheet (28k pdf)
3D model of the SY20STH42-0804A stepper motor (Pololu item #2256) (3MB step)

Related products

	Stepper Motor: Bipolar, 200 Steps/Rev, 20×30mm, 3.9V, 0.6 A/Phase
	Tic T500 USB Multi-Interface Stepper Motor Controller (Connectors Soldered)
	DRV8825 Stepper Motor Driver Carrier, High Current
	DRV8834 Low-Voltage Stepper Motor Driver Carrier
	A4988 Stepper Motor Driver Carrier, Black Edition
	A4988 Stepper Motor Driver Carrier
	Pololu Universal Aluminum Mounting Hub for 4mm Shaft, #4-40 Holes (2-Pack)
	Pololu Universal Aluminum Mounting Hub for 4mm Shaft, M3 Holes (2-Pack)
	Sanyo Miniature Stepper Motor: Bipolar, 200 Steps/Rev, 14×30mm, 6.3V, 0.3 A/Phase
	Sanyo Miniature Stepper Motor: Bipolar, 200 Steps/Rev, 14×30mm, 6.3V, 0.3 A/Phase, Double Shaft
	Stepper Motor: Bipolar, 200 Steps/Rev, 28×32mm, 3.8V, 0.67 A/Phase
	Stepper Motor: Bipolar, 200 Steps/Rev, 28×45mm, 4.5V, 0.67 A/Phase
	Stepper Motor: Bipolar, 200 Steps/Rev, 35×26mm, 7.4V, 0.28 A/Phase
	Stepper Motor: Bipolar, 200 Steps/Rev, 35×28mm, 10V, 0.5 A/Phase
	Stepper Motor: Bipolar, 200 Steps/Rev, 35×36mm, 2.7V, 1 A/Phase
	Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 42×48mm, 4V, 1.2 A/Phase
	Crimping Tool: 0.08-0.5 mm² Capacity, 20-28 AWG
	Male Crimp Pins for 0.1" Housings 100-Pack
	0.1" (2.54mm) Crimp Connector Housing: 1x4-Pin 10-Pack