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Nema 4 Micro Stepper Motor, 5V, 2 Phase, Bipolar

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$34.15

Micro stepper motor size in Nema 4 (10mm). Rated voltage 5V, current 0.33A/0.27A/0.128A for selection, 2 phase, step angle 18°, resistance 15/18/39Ω, holding torque 1.6/1.3/1.3 mN-m. Cheap miniature stepper motor with metal gear, bipolar drive.

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SKU: ATO-MGSTEP-452

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Overview
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Low price Nema 4 micro stepper motor with metal gear. Rated voltage DC 5V, optional current 0.33A/0.27A/0.128A, corresponding resistance 15Ω/18Ω/39Ω, diameter 10mm, stepping angle 18 degree. 2 phase miniature bipolar stepper motor, wide applications.

Specification Datasheet

Model	ATO-SM1024	ATO-SM1051	ATO-SM1055
Rated Voltage	5V	5V	5V
Rated Current	0.33A	0.27A	0.128A
Resistance	15Ω	18Ω	39Ω
Phase	2 Phase	2 Phase	2 Phase
Stepping Angle	18°	18°	18°
Excitation Method	2	2	2
Pull-in Torque	0.6 mN-m (500 pps)	0.32 mN-m (500 pps)	0.35 mN-m (500 pps)
Pull-out Torque	0.7 mN-m (500 pps)	0.45 mN-m (500 pps)	0.45 mN-m (500 pps)
Holding Torque	1.6 mN-m (0 pps)	1.3 mN-m (0 pps)	1.3 mN-m (0 pps)
Max. Continuous Response Frequency	1200 pps	1600 pps	1200 pps
Max. Starting Frequency	900 pps	1000 pps	900 pps
Drive Mode	Bipolar Drive
Ambient Temperature	-10℃~55℃
Insulation Resistance	500VDC 50MΩ min
Insulation Grade	E

Phase Sequence Excitation & Dimensions Diagram (Unit: mm)

5V 0.33A Micro Stepper Motor (ATO-SM1024)

Connector PIN Location
PIN No.	Color	CCW←→CW (Seen from flange side)				Phase
1	-	ON	-	-	ON	A
2	-	-	-	ON	ON	B
3	-	-	ON	ON	-	A
4	-	ON	ON	-	-	B

5V 0.27A Micro Stepper Motor (ATO-SM1051)

Connector PIN Location
PIN No.	Color	CCW←→CW (Seen from flange side)				Phase
1	-	ON	-	-	ON	A
2	-	-	-	ON	ON	B
3	-	-	ON	ON	-	A
4	-	ON	ON	-	-	B

5V 0.128A Micro Stepper Motor (ATO-SM1055)

Connector PIN Location
PIN No.	Color	CCW←→CW (Seen from flange side)				Phase
1	Brown	-	ON	ON	-	B
2	Black	ON	-	-	ON	B
3	White	ON	ON	-	-	A
4	Red	-	-	ON	ON	A

Details

Tips: Nema 4 micro stepper structure.

Nema 4 micro stepper is mainly composed of base body, rotor, gear and linear guide.

The base body also acts as a stator, with magnetic poles, stator teeth, coils and control circuits on its surface.
The rotor is located above the stator, with mover teeth on the lower surface. The function of guide rail is equivalent to a linear bearing, keeping the rotor in place.
There is a shell above the guide rail and rotor for sealing. The rotor is separated from the surrounding elements by an air gap.

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