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Stepping Motors
56 mm sq. 2.20 inch sq.
1.8 /step
Unipolar winding Lead wire type P.38 Bipolar winding Lead wire type
Bipolar winding Lead wire type
Model number
Single shaft 103H7121-5640 103H7121-5740 103H7121-5840 103H7123-5640 103H7123-5740 103H7123-5840 103H7126-5640 103H7126-5740 103H7126-5840 103H7128-5640 103H7128-5740 103H7128-5840
Dual shaft 103H7121-5610 103H7121-5710 103H7121-5810 103H7123-5610 103H7123-5710 103H7123-5810 103H7126-5610 103H7126-5710 103H7126-5810 103H7128-5610 103H7128-5710 103H7128-5810
Holding torque at 2-phase energization [N m oz in MIN.] 0.55 77.9 0.55 77.9 0.55 77.9 1.0 141.6 1.0 141.6 1.0 141.6 1.6 226.6 1.6 226.6 1.6 226.6 2.0 283.2 2.0 283.2 2.0 283.2
Rated current
Wiring resistance
A/phase
/phase
1 4.3
2 1.1
3 0.54
1 5.7
2 1.5
3 0.
103H7121-5640 Datasheet
